[Event "Scherer Chess Master 2024"]
[Site "Joaçaba-SC"]
[Date "2024.05.01"]
[Round "1.1"]
[White "Perdomo, Leandro"]
[Black "Do Valle Cardoso, Lucas"]
[Result "1/2-1/2"]
[ECO "D50"]
[WhiteElo "2380"]
[BlackElo "2371"]
[Annotator "Stockfish 16.1"]
[PlyCount "123"]
[EventDate "2024.??.??"]
[EventCountry "BRA"]

{[%evp 11,123,31,36,10,10,8,10,8,10,10,28,29,48,48,43,48,46,44,42,43,51,45,43,
41,42,37,37,35,35,29,38,25,25,22,34,41,42,47,40,39,53,10,10,7,8,5,5,2,2,2,7,2,
2,0,0,0,0,0,2,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4.
Bg5 Bb4 5. cxd5 exd5 6. e3 h6 7. Bxf6 Qxf6 8. Qb3 Qd6 9. a3 (9. Nf3 {keeps
more tension.} Nd7 10. Bd3 c6 11. O-O O-O 12. a3) 9... Bxc3+ $1 10. Qxc3 O-O ({
RR} 10... Bf5 11. Qb4 Qxb4+ 12. axb4 Nd7 13. Ne2 Ke7 14. Nc3 c6 15. b5 a6 16.
bxc6 bxc6 17. Be2 Rhb8 18. Ra2 Rb3 19. O-O Rab8 20. Na4 Bd3 21. Bxd3 Rxd3 22.
Rc1 Kd6 23. Nc3 Rd2 24. Nd1 Rb6 25. Kf1 {Harikrishna,P (2704)-Pichot,A (2638)
Chartres FRA 2023 1/2-1/2 (40)}) 11. Bd3 ({RR} 11. Rc1 c6 12. Bd3 Qf6 13. Nf3
Bf5 14. Ne5 Nd7 15. Nxd7 Bxd7 16. O-O Bf5 17. b4 Bxd3 18. Qxd3 a6 19. a4 Rfe8
20. Rc5 h5 21. b5 axb5 22. axb5 Re6 23. bxc6 bxc6 24. Qc3 h4 25. h3 g6 {
Dragun,K (2553)-Duda,J (2732) chess.com INT 2024 1/2-1/2 (39)}) 11... b6 $146 (
{RR} 11... Nd7 12. Nf3 a5 13. O-O Nf6 14. Ne5 Ng4 15. Nxg4 Bxg4 16. h3 Bd7 17.
Rfc1 c6 18. b4 b6 19. Rab1 Rfb8 20. bxa5 bxa5 21. Rxb8+ Qxb8 22. Rb1 Qd6 23.
Rb6 g5 24. g4 Kg7 25. Ra6 Rb8 26. Qxa5 {Rottenwohrer Suarez,J (2281)
-Maghsoodloo,P (2707) chess.com INT 2023 0-1}) ({RR} 11... Bg4 12. Ne2 Nd7 13.
O-O b6 14. b4 c5 15. bxc5 bxc5 16. dxc5 Nxc5 17. Nd4 Rac8 18. Bf5 Ne6 19. Qb4
Qxb4 20. axb4 Bxf5 21. Nxf5 Rc7 22. Rfc1 Rb7 {1/2-1/2 (22) Keene,R (2460)
-Inkiov,V (2435) Skara 1980}) ({RR} 11... Bg4 12. h3 Bh5 13. Ne2 Bxe2 14. Bxe2
Nd7 15. O-O Nf6 16. Bd3 c6 17. b4 a6 18. a4 Rfe8 19. Rfc1 Ne4 20. Bxe4 Rxe4 21.
b5 axb5 22. axb5 Rxa1 23. Qxa1 Re8 24. bxc6 bxc6 25. Qa6 Re6 26. Qc8+ {Kanarek,
M (2444)-Ter Sahakyan,S (2566) Albena 2011 1/2-1/2 (34)}) 12. Rc1 Ba6 13. Bxa6
Nxa6 14. Qc6 Qxc6 15. Rxc6 Rac8 16. Ne2 Nb8 17. Rc2 c5 18. dxc5 bxc5 19. O-O
Nd7 20. Rfc1 Rb8 21. Nf4 Nf6 22. Rxc5 Rxb2 23. Nxd5 Nxd5 24. Rxd5 $11 {[%mdl
4096] Endgame KRR-KRR} Ra2 25. Ra5 Rd8 26. Rxa7 {[#] Strongly threatening g4.}
Rdd2 {The position is equal.} 27. Rf1 Rd3 28. g4 {And now Rb1 would win.} Rdxa3
29. Rxa3 (29. Rd7 {seems wilder.} Ra4 30. h3 Ra1 31. Rxa1 Rxa1+ 32. Kg2) 29...
Rxa3 {KR-KR} 30. Rd1 Ra5 31. h4 g5 32. h5 Kg7 33. Kg2 Ra2 34. Rd7 {Black
should prevent Kg3.} Rb2 35. e4 Re2 36. Kf3 Re1 37. Rd3 Kf6 38. Rd6+ Kg7 39.
Rc6 Ra1 40. e5 Ra3+ 41. Kg2 Ra4 42. f3 Ra2+ 43. Kf1 Ra1+ 44. Kf2 Ra2+ 45. Ke3
Ra3+ 46. Ke4 Ra4+ 47. Kd3 Ra3+ 48. Rc3 Ra6 49. Ke3 Rb6 50. f4 gxf4+ 51. Kxf4
Rb4+ 52. Kf5 Rb1 53. Re3 Rf1+ 54. Ke4 Rg1 55. Kf4 Rf1+ 56. Kg3 Rg1+ 57. Kf3
Rf1+ 58. Kg2 Rf4 59. Kg3 Rf1 60. e6 fxe6 61. Rxe6 Rf7 62. Rc6 {Precisão
Chessbase:Brancas 96% Pretas 96%. Precisão Lichess.org:Brancas 99% Pretas 99%.
Precisão Chess.com:Brancas 98.7% Pretas 99.0%.} 1/2-1/2

[Event "Scherer Chess Master 2024"]
[Site "Joaçaba-SC"]
[Date "2024.05.01"]
[Round "1.2"]
[White "Delgado Ramirez, Neuris"]
[Black "Librelato, Kathie Goulart"]
[Result "1-0"]
[ECO "A13"]
[WhiteElo "2489"]
[BlackElo "2166"]
[Annotator "Stockfish 16.1"]
[PlyCount "102"]
[EventDate "2024.??.??"]
[EventCountry "BRA"]

{[%evp 9,102,2,26,31,20,31,132,132,136,56,57,53,130,135,133,122,141,100,163,
159,201,191,197,108,105,110,217,148,144,148,149,129,152,148,142,105,173,145,
196,183,217,218,217,192,244,164,204,115,181,172,217,213,266,118,133,122,267,
276,282,279,273,219,199,212,202,194,268,252,346,126,334,331,332,330,330,330,
330,310,314,255,319,320,345,341,361,342,417,401,514,514,524,507,560,554,540]} 
1. c4 e6 2. Nf3 d5 3. e3 Nf6 4. b3 Nbd7 5. Bb2 b6 6. cxd5 exd5 7. Bb5 Bd6 $2 {
Mistake. Bb7 was best.} (7... Bb7 $1 8. Qc2 Bc5 9. d4 Bb4+ 10. Nbd2 O-O 11. O-O
Rc8 12. Rac1) (7... Bb7 $1 $14) 8. Bc6 $16 {White is clearly better.} Rb8 9.
Bxf6 $6 {Inaccuracy. Qc2 was best.} (9. Qc2 $1) (9. Qc2 $16) 9... Qxf6 $14 10.
Nc3 O-O $6 {Inaccuracy. Ba3 was best.} (10... Ba3 11. Nd4 O-O 12. O-O Bb2 13.
Nxd5 Qd8 $1 14. Rb1 Bxd4 $1 15. exd4 Nf6 16. Nxf6+ Qxf6 17. d5) (10... Ba3 $14
11. Nd4 (11. Bxd5 Bb2 $11) 11... Bb2) 11. Nxd5 $16 Qh6 $146 ({RR} 11... Qg6 12.
O-O Kh8 13. Rc1 Ne5 14. Nxe5 Bxe5 15. f4 Bd6 16. d3 Bg4 17. Qd2 Rbd8 18. b4 Be6
19. e4 Qh6 20. Qf2 f5 21. e5 Bxd5 22. exd6 Rxd6 23. Bxd5 Rxd5 24. Rxc7 Rxd3 25.
Rxa7 Rfd8 26. Rb7 {De Bruycker,B (2224)-Claessen,H Gent 2001 1-0}) 12. Qc2 Rd8
13. Rc1 Nf8 (13... Nf6 $16 {is a better defense.}) 14. b4 b5 15. Nd4 Be6 16.
Nf5 (16. Qe4 $18) 16... Qg5 17. Nxd6 Bxd5 $6 {Inaccuracy. Rxd6 was best.} (
17... Rxd6) (17... Rxd6 $16 18. h4 (18. Nxc7 Bc4 $11) 18... Qd8) 18. Bxd5 $6 {
Inaccuracy. Qf5 was best.} (18. Qf5 $1 {[%cal Rf5g5]} Qe7 19. Bxd5 Rxd6 20. Bb3
g6 21. Qc2 Ne6 22. O-O a5 23. bxa5 c5 24. a4 b4) 18... Qxd5 19. Ne4 f5 20. Ng3
f4 21. Ne4 (21. exf4 Qxg2 22. Qb3+ Kh8 $11) 21... Ne6 22. f3 Kh8 $6 {
Inaccuracy. a5 was best.} (22... a5 23. a3 axb4 24. axb4 Ng5 25. Nxg5 $1 Qxg5
26. O-O fxe3 27. Qb3+ Kh8 28. f4 Qe7 (28... Qg6 $14 29. Qxe3 Qd6) 29. dxe3) (
22... Ra8 $16) 23. O-O Rb6 24. Qb3 Qh5 25. Rc3 {[%cal Bc1c3,Bc3d3,Bd3d7][%mdl
32]} h6 26. Rd3 Rf8 27. Qd5 $6 {Inaccuracy. Rd5 was best.} (27. Rd5 Qg6 28. a3
a6 29. Qc3 Rbb8 30. Nc5 Rfd8 31. Nxe6 Qxe6 32. Rc5 Qf6 33. Re1 Qxc3) 27... Qg6
28. Qe5 $6 {Inaccuracy. Qb3 was best.} (28. Qb3) ({White should play} 28. Qb3
$18) 28... Rf5 $6 {Inaccuracy. fxe3 was best.} (28... fxe3) (28... fxe3 $16 29.
Rxe3 (29. dxe3 Ng5 $14) 29... Rf5) 29. Qc3 Kh7 30. Rd7 Ng5 31. Qd3 $2 {Mistake.
h4 was best.} (31. h4 Ne6) ({Weaker is} 31. Rxc7 Nxe4 32. fxe4 Rg5 $14) (31. h4
$18 {is more deadly.} Ne6 32. Qd3) 31... fxe3 {Strongly threatening ...Nh3+.}
32. Ng3 e2 $2 {Mistake. Rf4 was best.} (32... Rf4) (32... Rf4 $16) 33. Qxf5 $18
exf1=Q+ 34. Kxf1 Ne6 35. h4 Qxf5 36. Nxf5 {[%mdl 4096] Endgame KRN-KRN} Ra6 37.
d4 Kg6 $2 {Mistake. c6 was best.} (37... c6 38. Ne7 Nf4 39. g3 Nd3 40. h5 Rxa2
41. f4 Rf2+ 42. Kg1 Rd2 43. Nxc6 Ne1 44. Ne5) (37... c6 $142 38. h5 Rxa2) 38.
Ne7+ Kf7 {[#] Threatens to win with ...Ke8.} 39. Nc6+ $2 {Mistake. d5 was best.
} (39. d5 $1 Nf4 40. g3 Nh5 41. Rxc7 Kf6 42. Kg2 Rxa2+ 43. Kh3 Ke5 44. Nc8 Rd2
45. d6 g6) (39. d5 $1 $18 {is the precise move to win.}) 39... Kf6 $4 {Blunder.
Kf8 was best.} (39... Kf8 40. Ne5 Ke8 41. d5 Nf4 42. Rxc7 Nxd5 43. Rxg7 Rxa2
44. g4 Nxb4 45. g5 hxg5 {[#]} 46. h5 $1) (39... Kf8 $16) 40. Ne5 {[%csl Ge5]
[%cal Rd7f7]} Nxd4 41. Ng4+ ({And not} 41. Rxd4 Kxe5 42. Rd7 c5 $11) 41... Ke6
42. Rxd4 Rxa2 {KRN-KR} 43. Re4+ Kd6 44. Ne3 a5 45. bxa5 {[%cal Bb4a5,Ba5a6]
[%mdl 32]} c5 46. Rg4 c4 47. Rxg7 c3 48. a6 b4 49. Rb7 {White is clearly
winning.} c2 {[#]} 50. Nxc2 $1 Rxc2 51. Rxb4 Kd7 {Precisão Chessbase:Brancas
58% Pretas 37%. Precisão Lichess.org:Brancas 92% Pretas 89%. Precisão Chess.
com:Brancas 85.7% Pretas 78.7%.} (51... Kd5) 1-0

[Event "Scherer Chess Master 2024"]
[Site "Joaçaba-SC"]
[Date "2024.05.01"]
[Round "1.3"]
[White "Bachmann, Axel"]
[Black "Flores Quillas, Diego Saul Rodri"]
[Result "1-0"]
[ECO "A30"]
[WhiteElo "2582"]
[BlackElo "2434"]
[Annotator "Stockfish 16.1"]
[PlyCount "67"]
[EventDate "2024.??.??"]
[EventCountry "BRA"]

{[%evp 19,67,45,49,48,48,39,46,43,70,66,168,173,223,223,190,194,221,161,303,
303,363,367,369,357,405,390,412,412,417,382,379,366,340,257,246,281,416,265,
258,228,325,325,328,339,345,346,494,489,485,484]} 1. Nf3 c5 2. c4 Nc6 3. Nc3 g6
4. e3 Nf6 5. d4 cxd4 6. exd4 d5 7. cxd5 Nxd5 8. Qb3 Nxc3 9. Bc4 e6 10. bxc3 Bd7
{aiming for ... Na5.} 11. Be2 (11. Qxb7 $2 Rb8 $19) 11... Na5 12. Qb1 ({RR} 12.
Qc2 Bc6 13. O-O Be7 14. Bh6 f6 15. c4 Rc8 16. Rab1 Kf7 17. Rfe1 b5 18. d5 Bxd5
19. Rxb5 Nxc4 20. Qa4 Qd7 21. Rc1 Nb6 22. Qd4 Rxc1+ 23. Bxc1 Rc8 24. Be3 Rc2
25. Bd3 Rxa2 26. h3 Ra4 {Ribeiro,M (2177)-Flores Quillas,D (2413) Sao Paulo
BRA 2024 0-1 (36)}) 12... Bg7 ({RR} 12... Rc8 13. O-O Bg7 14. Ba3 Bf8 15. Bb4
Bxb4 16. cxb4 Nc6 17. b5 Ne7 18. Ne5 O-O 19. Bf3 b6 20. Qb4 f6 21. Nd3 Be8 22.
Rac1 Rxc1 23. Rxc1 Nf5 24. d5 e5 25. Bd1 Bf7 26. Qa3 Qxd5 27. Nb4 {Ding Liren 
(2791)-So,W (2778) Stavanger NOR 2018 0-1 (36)}) 13. Ba3 {White is slightly
better.} Bc6 $146 ({RR} 13... Bf8 14. Bb4 Bxb4 15. Qxb4 b6 16. O-O Qe7 17. a3
Nc6 18. Qb2 O-O 19. c4 Qf6 20. Rfe1 Rac8 21. Rac1 Rfd8 22. Red1 Rc7 23. Qd2 Na5
24. Qb4 {1/2-1/2 (24) Wallace,J (2346)-Bjerre,J (2549) Oslo NOR 2020}) ({RR} 
13... Bf8 14. Bxf8 Kxf8 15. c4 Bc6 16. Qb4+ Kg7 17. O-O Rc8 18. Ne5 b6 19. Rad1
Qg5 20. g3 Rhd8 21. Qb2 Ba4 22. Rd2 Qe7 23. d5 f6 24. Ng4 Nxc4 25. Bxc4 Rxc4
26. d6 Qf7 27. Ne3 Rc5 28. Rc1 {Firouzja,A (2759)-Svidler,P (2714) chess24.com
INT 2021 1/2-1/2 (76)}) ({RR} 13... Bf8 14. Qc1 Bxa3 15. Qxa3 b6 16. h4 h5 17.
O-O Qe7 18. Qc1 Rc8 19. Qf4 O-O 20. Rac1 Kg7 21. Ng5 Bc6 22. c4 Rfd8 23. Rfd1
Qf6 24. Qe3 Bb7 25. Qg3 Nc6 26. d5 exd5 27. cxd5 Nd4 28. Bd3 {Parligras,M 
(2591)-Bjerre,J (2550) Reykjavik ISL 2021 0-1 (41)}) 14. O-O f6 $6 {Inaccuracy.
Bf8 was best.} (14... Bf8 15. Bc1) (14... Bf8 $14 15. Qc1 Bxa3 16. Qxa3 f6) 15.
c4 $18 {[%cal Bc3c4,Bc4d5][%mdl 32]} Kf7 {[#]} 16. d5 $1 {[%cal Rd5c6][%mdl
512]} exd5 17. cxd5 Bd7 18. Bb4 $6 {Inaccuracy. Re1 was best.} (18. Re1 Re8 19.
h4 Rc8 20. d6 Bf8 21. h5 Nc4 (21... Qb6 $142 22. Qd3 Qc6) 22. Bxc4+ Rxc4 23.
Qxb7 Rxe1+ (23... Qc8 $142 24. Qb3 Rxe1+ 25. Rxe1 Be6) 24. Rxe1 Qc8) 18... b5
$2 {Mistake. Re8 was best.} (18... Re8 19. Nd4 Kg8 20. Ne6 Bxe6 21. dxe6 Nc6
22. Rd1 Qb6 23. Ba3 Bf8 24. Bb2 Ne5 (24... Kg7 $14) 25. Bxe5 $1) (18... Re8 {
was worth a try.}) 19. Nd4 Nc4 $6 {Inaccuracy. Qb6 was best.} (19... Qb6 20.
Ne6 Nb7 21. Bd2 Rhc8 22. Re1 Nd6 23. Be3 Qa5 24. Bf4 Nc4 (24... Qa3 $142 25.
Qb3 Qxb3 26. axb3 Ne8) 25. a4 b4 26. Qb3) 20. a4 a6 21. Ne6 Qb8 22. Re1 Re8 23.
axb5 Bxb5 24. Rc1 Rc8 25. Qa2 {[%cal Re2c4]} Bh6 26. Rc3 Qe5 {Strongly
threatening ...a5.} 27. Rh3 ({Don't go for} 27. Rxc4 $2 Bxc4 28. Nd8+ (28. Bxc4
$2 Rxc4 29. Re1 Re4 $19) 28... Kg7 $19) 27... Qxd5 $6 {Inaccuracy. Ne3 was
best.} (27... Ne3 28. Rxh6) (27... Ne3 $142) 28. Bf3 $6 {Inaccuracy. Rxh6 was
best.} (28. Rxh6 Kg8 29. Bf3 Qxe6 30. Re1 Qf7 31. Bxa8 a5 32. Rxh7 Kxh7 33. Re7
Qxe7 34. Bxe7 Re8) 28... Qxe6 29. Re1 ({Less strong is} 29. Rxh6 Kg7 $14) 29...
Qxh3 (29... Ne5 {keeps fighting.} 30. Qxe6+ (30. Bd5 Bc4 $16) 30... Kxe6) 30.
Re7+ Kg8 31. gxh3 Rab8 32. Bd6 Bf8 $2 {Mistake. Kf8 was best.} (32... Kf8 33.
Bb4 Kg8 34. Bc3 Rc5 35. Bg4 Rd8 36. Bxf6 Rd6 37. Ba1 Bf4 38. Bc3 h5 39. Be6+) (
32... Kf8 {was necessary.}) 33. Bd5+ Kh8 {[#]} 34. Qa1 $1 {Precisão Chessbase:
Brancas 82% Pretas 43%. Precisão Lichess.org:Brancas 96% Pretas 90%.
Precisão Chess.com:Brancas 89.9% Pretas 83.0%.} 1-0

[Event "Scherer Chess Master 2024"]
[Site "Joaçaba-SC"]
[Date "2024.05.01"]
[Round "1.4"]
[White "Fier, Alexandr"]
[Black "Di Berardino, Diego Rafael"]
[Result "1/2-1/2"]
[ECO "C11"]
[WhiteElo "2579"]
[BlackElo "2489"]
[Annotator "Stockfish 16.1"]
[PlyCount "47"]
[EventDate "2024.??.??"]
[EventCountry "BRA"]

{[%evp 15,47,21,44,15,40,-10,-5,-7,-3,-10,-7,-51,-44,-45,-19,-96,-94,-173,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 dxe4 5. Nxe4
Be7 6. Bxf6 Bxf6 7. Nf3 Nd7 8. Bd3 O-O 9. Qd2 ({RR} 9. O-O b6 10. Qe2 Bb7 11.
c3 Rc8 12. Rad1 Qe7 13. Ne5 Bxe5 14. dxe5 Nxe5 15. Bb1 Rcd8 16. Qh5 Bxe4 17.
Bxe4 Ng6 18. g3 Rxd1 19. Rxd1 Rd8 20. h4 Rxd1+ 21. Qxd1 Qd6 22. Qa4 a5 23. Qe8+
Qf8 {Bolat,I (2208)-Tilahun,A (1953) chess.com INT 2024 1-0 (37)}) 9... b6 ({RR
} 9... h6 10. O-O-O b6 11. g4 Bb7 12. h4 Be7 13. g5 f5 14. gxh6 fxe4 15. hxg7
Rf6 16. Ng5 exd3 17. Qxd3 Rh6 18. Rhg1 Bxg5+ 19. hxg5 Rh7 20. Rde1 Qe7 21. d5
e5 22. g6 Rxg7 23. Rh1 Qg5+ 24. Kb1 {Bortnyk,O (2604)-Mardov,D (2396) chess.
com INT 2022 1-0 (58)}) 10. Neg5 $6 {Inaccuracy. O-O-O was best.} (10. O-O-O
Bb7 11. h4 Be7 12. Qe2 Nf6 13. Neg5 Bxf3 14. Nxf3 c5 15. Kb1 Qc7 16. g4 Rad8)
10... Bxg5 $146 ({RR} 10... g6 11. h4 Bb7 12. O-O-O Qe7 13. Be4 Bxe4 14. Nxe4
Bg7 15. h5 c5 16. hxg6 hxg6 17. g4 cxd4 18. Nxd4 Nc5 19. f4 Rfd8 20. c3 Qc7 21.
Qe3 Rxd4 22. cxd4 Nxe4+ 23. Kb1 Nf6 24. Qf3 Rd8 25. f5 {Amirkhanov,R (2220)
-Sitdikova,L (2005) Kazan 2007 1/2-1/2}) 11. Nxg5 Nf6 12. O-O-O Bb7 13. h4 c5 (
13... Bxg2 $2 14. Rhg1 $18) 14. dxc5 bxc5 15. Rh3 $6 {Inaccuracy. Qf4 was best.
} (15. Qf4 Qb6) (15. Qf4 $11 {keeps the balance.} Qa5 16. Kb1) 15... Qc7 $17 ({
Avoid the trap} 15... Bxg2 $2 16. Rg3 $18) 16. Rg3 $6 {Inaccuracy. Qc3 was
best.} (16. Qc3 Qf4+ 17. Kb1 h6 18. Nf3 Rfd8 19. Qxc5 (19. Qe5 $1 $15 Qxe5 20.
Nxe5) 19... Ne4 $1 20. Qb4 Rab8 21. Qe1 {[#]} a5 (21... Qf6 $1 $19 22. Ka1 Ba6)
22. a3 Rdc8) (16. Qc3 $17 {was necessary.}) 16... c4 $2 {Mistake. h6 was best.}
(16... h6 17. Nh7 Nxh7 18. Qxh6 {[%csl Gd3][%cal Rh6h7] [#]} f5 $1 19. Qxe6+
Kh8 20. Re3 Bxg2 21. Bxf5 Qf4 22. Bd3 Rf6 23. Qe5) ({Better is} 16... h6 $19 {
White must now prevent ...c4.} 17. Nh3 Rfd8) 17. Nxh7 $11 {The position is
equal.} Nxh7 18. Bxh7+ Kxh7 {[#]} 19. Rxg7+ $1 {[%mdl 512]} Kxg7 20. Qg5+ Kh7
21. Qh5+ Kg7 22. Qg5+ Kh7 23. Qh5+ Kg7 24. Qg5+ {Precisão Chessbase:Brancas
52% Pretas 74%. Precisão Lichess.org:Brancas 93% Pretas 92%. Precisão Chess.
com:Brancas 94.0% Pretas 94.2%.} 1/2-1/2

[Event "Scherer Chess Master 2024"]
[Site "Joaçaba-SC"]
[Date "2024.05.01"]
[Round "1.5"]
[White "Cubas, Jose Fernando"]
[Black "Quintiliano, Renato R."]
[Result "1-0"]
[ECO "C26"]
[WhiteElo "2421"]
[BlackElo "2490"]
[Annotator "Stockfish 16.1"]
[PlyCount "68"]
[EventDate "2024.??.??"]
[EventCountry "BRA"]

{[%evp 20,68,67,71,67,64,57,60,91,83,94,96,98,82,129,132,130,94,163,163,164,
154,191,186,205,210,206,201,216,227,251,203,215,218,213,226,204,192,316,279,
328,324,317,294,378,338,589,589,605,582,29998]} 1. e4 e5 2. Nc3 Nf6 3. d4 d6 $6
{Inaccuracy. exd4 was best.} (3... exd4 4. Qxd4 Nc6 5. Qc4 Bb4 6. Bd2 O-O 7.
O-O-O d6 8. f3) 4. Nf3 exd4 5. Qxd4 Nc6 6. Bb5 Bd7 7. Bxc6 Bxc6 8. Bg5 Be7 9.
O-O-O h6 10. Bh4 O-O 11. Rhe1 Nd7 12. Bxe7 Qxe7 13. Qd2 ({RR} 13. Nd5 Bxd5 14.
exd5 Qf6 15. Qxf6 Nxf6 16. Re7 Rfc8 17. c4 Kf8 18. Re2 c6 19. dxc6 Rxc6 20. Rc2
Rac8 21. b3 a6 22. Kb2 d5 23. Nd4 Rc5 24. cxd5 Nxd5 25. Rxc5 Rxc5 26. Nf5 g6
27. Nd6 Nb4 {Kurtyilmaz,K (1939)-Radlovacki,J (2191) Ayvalik TUR 2024 1/2-1/2 
(58)}) 13... Nb6 {White is slightly better.} 14. Nd4 Bd7 15. b3 $146 ({RR} 15.
h3 a5 16. f4 a4 17. a3 Qd8 18. g4 Ra5 19. Rg1 Rc5 20. Rg3 Nc4 21. Qg2 g5 22. f5
Qf6 23. Nd5 Qe5 24. Rc3 Rxd5 25. exd5 Ne3 26. Rxe3 Qxe3+ 27. Kb1 Re8 28. Rd3
Qe1+ 29. Ka2 Qc1 {Roy Chowdhury,S (2045)-Saravanan,V (2420) Kolkata 1994 0-1 
(56)}) 15... Rad8 16. Re3 Kh8 $6 {Inaccuracy. Qf6 was best.} (16... Qf6 17. Rd3
c5 18. Nde2 d5 19. Rf3 Qd6 20. exd5 Qxh2 21. Re3 Rfe8 22. Ne4 Bg4 23. c4) 17.
Kb1 Qg5 18. g3 Qh5 (18... Rfe8 $16) 19. f3 $18 Rfe8 20. g4 Qc5 21. Rd3 a6 22.
h4 Kg8 23. Nf5 Bxf5 24. gxf5 Rd7 25. Nd5 Nxd5 26. Rxd5 Qb6 {[#]} 27. f6 $1 {
[%mdl 512] And now Qg2 would win.} Re6 (27... gxf6 28. Qxh6) 28. fxg7 Kxg7 $6 {
Inaccuracy. Rde7 was best.} (28... Rde7 29. Rf5 Kxg7 30. a4 Rg6 31. a5 Qa7 32.
Kb2 b5 33. h5 Rge6 34. Kb1 Kf8 35. Qc3) (28... Rde7 {was necessary.} 29. h5
Kxg7) 29. h5 $6 {Inaccuracy. f4 was best.} (29. f4) 29... Kf8 $6 {[#]
Inaccuracy. Rde7 was best.} (29... Rde7 30. Rf5 Kf8 31. Qc3 {[%cal Rc3h8]} Ke8
32. Qh8+ Kd7 33. Kb2 Qf2 34. Rd3 Kc6 35. Qb8 Re5 36. Rc3+) 30. e5 $1 {[%mdl
512]} Ke7 (30... dxe5 31. Rxd7) 31. f4 {f5 is the strong threat.} Qc6 $6 {
Inaccuracy. c6 was best.} (31... c6 32. Rd4 d5 33. c4 Qc7 34. cxd5 Rxd5 35.
Rxd5 cxd5 36. Qxd5 Kf8 37. Qd2 Qb6 38. Qd3) 32. Qg2 Kf8 $2 {Mistake. Qc3 was
best.} (32... Qc3 33. Qg7) (32... Kd8 $142 33. Qg8+ Re8) 33. f5 Rxe5 34. f6 {
White threatens Qg7+ and mate.} Re6 {Precisão Chessbase:Brancas 96% Pretas
39%. Precisão Lichess.org:Brancas 95% Pretas 89%. Precisão Chess.com:Brancas
91.6% Pretas 78.3%.} 1-0

[Event "Scherer Chess Master 2024"]
[Site "Joaçaba-SC"]
[Date "2024.05.02"]
[Round "2.1"]
[White "Do Valle Cardoso, Lucas"]
[Black "Quintiliano, Renato R."]
[Result "1/2-1/2"]
[ECO "D32"]
[WhiteElo "2371"]
[BlackElo "2490"]
[Annotator "Stockfish 16.1"]
[PlyCount "50"]
[EventDate "2024.??.??"]
[EventCountry "BRA"]

{[%evp 18,50,14,7,9,8,13,3,1,2,8,8,30,6,6,2,5,4,5,-9,25,12,12,7,12,0,0,0,0,0,0,
0,0,0,0]} 1. Nf3 c5 2. c4 Nc6 3. Nc3 Nf6 4. e3 e6 5. d4 d5 6. a3 dxc4 7. Bxc4
a6 8. O-O b5 {[%cal Bb7b5,Bb5b4][%mdl 32]} 9. Ba2 Bb7 10. Qe2 cxd4 11. Rd1 {
[%cal Re3d4]} b4 12. exd4 {And now d5 would win.} bxc3 13. d5 $1 {[%cal Rd5c6]}
Nxd5 14. Bxd5 {[#]} Nd4 $1 {[%mdl 512]} 15. Rxd4 Bxd5 16. bxc3 {Strongly
threatening c4.} Bc5 $132 {[%mdl 2048] Black is not holding back} 17. Rg4 Qf6
18. Nd4 $146 {With the idea Bg5.} ({RR} 18. Ne5 Bd6 19. Nc4 Bxc4 20. Qxc4 O-O
21. Bg5 Qg6 22. Be7 Bxe7 23. Rxg6 hxg6 24. g3 Rfc8 25. Qd3 Bf6 26. Rc1 Rc6 27.
h4 Rd8 28. Qf3 Rdc8 29. c4 a5 30. Kg2 Rc5 31. Rd1 Rxc4 32. Rd7 Rf8 {Gelfand,B 
(2703)-Leko,P (2690) Batumi GEO 2018 1/2-1/2 (47)}) 18... Bxd4 19. Rxd4 O-O {
The position is equal.} 20. Bf4 Qf5 21. Bd6 Rfd8 22. Rf4 Qg6 {[%csl Gd5][%cal
Rg6g2] [#]} (22... Qg5 $5 23. Rg4 $8 Qf5 $11) 23. Rg4 Qf5 $1 24. Rf4 Qg6 {
[%csl Gd5][%cal Rg6g2]} (24... Qg5 $5 25. Rg4 $8 Qf5 26. Rf4 $11) 25. Rg4 Qf5
$1 {Precisão Chessbase:Brancas 93% Pretas 93%. Precisão Lichess.org:Brancas
99% Pretas 99%. Precisão Chess.com:Brancas 98.3% Pretas 98.5%.} 1/2-1/2

[Event "Scherer Chess Master 2024"]
[Site "Joaçaba-SC"]
[Date "2024.05.02"]
[Round "2.2"]
[White "Di Berardino, Diego Rafael"]
[Black "Cubas, Jose Fernando"]
[Result "1-0"]
[ECO "E94"]
[WhiteElo "2489"]
[BlackElo "2421"]
[Annotator "Stockfish 16.1"]
[PlyCount "61"]
[EventDate "2024.??.??"]
[EventCountry "BRA"]

{[%evp 19,61,89,98,98,98,98,101,102,105,94,107,71,72,70,75,75,77,67,136,86,79,
74,92,106,156,152,196,190,257,247,272,252,279,280,394,355,383,379,338,303,375,
397,591,587]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7.
O-O Na6 8. Re1 Qe8 9. Bf1 Bg4 10. d5 Nb4 11. a3 Bxf3 12. gxf3 Na6 13. b4 {
White is better.} Qe7 14. Be3 Nh5 15. c5 dxc5 16. Bxa6 bxa6 17. bxc5 Nf4 $146 {
[#] ( -> ...Qg5+)} ({RR} 17... Qh4 18. d6 cxd6 19. Qxd6 Qh3 20. c6 Qxf3 21. c7
Nf4 22. Bxf4 exf4 23. Nd5 Qg4+ 24. Kh1 f3 25. Rg1 Qe6 26. Ne7+ Kh8 27. Qxe6
fxe6 28. Rac1 {1-0 (28) Pankov,G-Altshul,R (2338) St Petersburg 2002}) 18. Kh1
$1 Rad8 $6 {Inaccuracy. Nh3 was best.} (18... Nh3) ({Better is} 18... Nh3 $14)
19. Rc1 Bh6 20. Rc2 Qh4 21. Rg1 f5 $6 {Inaccuracy. Ne6 was best.} (21... Ne6
22. Rg4 Qh3 23. Rg3 Qh4 24. c6 f5 (24... Bf4 $16) 25. exf5 Rxf5 26. Bxh6 (26.
Ne4 $18) 26... Qxh6 27. Ne4 Rf7 28. Rb2) 22. d6 c6 23. Qf1 fxe4 $6 {Inaccuracy.
Kh8 was best.} (23... Kh8 24. Rg3 Rb8 25. exf5 gxf5 26. Rd2 ({White should try
} 26. Ne2 $18) 26... Rg8 (26... Bg7 $16) 27. Rd1 Bg5 (27... Bg7 $142 28. Qc4
Qf6 29. Qxa6 Ne6) 28. Ne2 Ne6 29. f4 Bxf4 30. Nxf4) (23... Kh8 $142) 24. Rg4
$18 ({Weaker is} 24. Qxa6 Rf5 $14) ({And not} 24. fxe4 Kh8 $14) (24. Nxe4 $6
Qh5 $18) 24... Qh5 25. Qc4+ ({Don't take} 25. Nxe4 $6 Qf5 $18) 25... Kh8 26.
Qxe4 Rf5 $6 {Inaccuracy. Qh3 was best.} (26... Qh3 27. Rg3 Qf5 28. Qxf5 gxf5
29. Bxf4 Bxf4 30. Rg1 Rg8 31. Ne2 Rxg1+ 32. Kxg1 Bg5 33. Rb2) (26... Qh3 {
might work better.} 27. Rg3 Qd7) 27. Ne2 Nxe2 28. Rxe2 Bxe3 29. fxe3 Qh3 {
[#] Strongly threatening ...Qf1+.} 30. Rf2 {Threatens to win with Rh4.} Rdf8 $2
{Mistake. Qh6 was best.} (30... Qh6 31. Rg3 Rh5 32. Rd2 a5 33. Rgg2 Rf5 34. Rd1
Qh5 35. Rg3 Rb8 36. d7 Rff8 37. a4) (30... Qh6 $142 31. Rg3 Rf7) 31. Rh4 {
Precisão Chessbase:Brancas 90% Pretas 46%. Precisão Lichess.org:Brancas 98%
Pretas 91%. Precisão Chess.com:Brancas 95.3% Pretas 86.9%.} 1-0

[Event "Scherer Chess Master 2024"]
[Site "Joaçaba-SC"]
[Date "2024.05.02"]
[Round "2.3"]
[White "Perdomo, Leandro"]
[Black "Delgado Ramirez, Neuris"]
[Result "1/2-1/2"]
[ECO "D36"]
[WhiteElo "2380"]
[BlackElo "2489"]
[Annotator "Stockfish 16.1"]
[PlyCount "80"]
[EventDate "2024.??.??"]
[EventCountry "BRA"]

{[%evp 15,80,12,15,16,16,18,20,15,28,16,39,9,6,3,10,-14,-15,-20,0,-12,-12,-19,
-15,-12,-11,-19,-18,-17,-19,-23,-13,-12,-8,-5,-7,-7,-8,-12,-10,-18,-17,-17,-8,
-6,-3,-9,-5,-16,-6,-13,0,0,0,0,-3,-4,0,0,1,1,8,2,2,5,10,0,0]} 1. d4 Nf6 2. c4
e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 c6 6. Qc2 Na6 {[%cal Bb8a6,Ba6c7,Bc7e6,Be6g7,
Bg7f5][%mdl 32]} 7. a3 Nc7 8. e3 Be7 9. Bd3 Ne6 10. Bh4 g6 11. Nf3 Ng7 ({RR} 
11... O-O 12. O-O Ng7 13. b4 a6 14. Na4 Bf5 15. Nc5 Ra7 16. a4 Bxd3 17. Nxd3
Nf5 18. Bxf6 Bxf6 19. b5 cxb5 20. axb5 a5 21. Rfc1 b6 22. Qb3 Ne7 23. Nb4 Ra8
24. Nc6 Qd6 25. Nxe7+ Bxe7 26. Rc6 {Carlsen,M (2850)-Bruzon Batista,L (2659)
Berlin 2015 1-0 (59)}) 12. O-O Bf5 13. Bxf5 Nxf5 14. Bxf6 $146 ({RR} 14. Bg5
O-O 15. Qb3 Qb6 16. Qc2 Rfe8 17. b4 a6 18. Ne5 Qd8 19. Na4 Nd7 20. Bxe7 Rxe7
21. Nxd7 Rxd7 22. Qc5 Re7 23. Qc2 Nd6 24. Nb2 Rc7 25. a4 a5 26. Qb3 axb4 27.
Qxb4 b5 28. axb5 Rb8 {Bhuta,H (1650)-Minko,D (2085) Barcelona ESP 2018 1/2-1/2
(35)}) 14... Bxf6 15. e4 dxe4 16. Qxe4+ Ne7 17. Rad1 {d5 is the strong threat.}
O-O 18. Ne5 Bg7 (18... Qd6 {is interesting.} 19. Qf4 Bg7 20. Ne4 Qd8 21. Nc3
Nd5) 19. d5 cxd5 20. Nxd5 Nxd5 21. Qxd5 Qxd5 22. Rxd5 Rfe8 23. f4 {The
position is equal.} Bxe5 (23... f6 {feels hotter.} 24. Nf3 Bf8 25. Rfd1 Rac8
26. Kf1 Rc2) 24. fxe5 $11 {[%mdl 4096] Endgame KRR-KRR} Re7 25. Rfd1 Rc8 26.
R1d2 Rc6 27. h3 Rce6 28. Re2 Kg7 29. Kh2 g5 30. g4 Kg6 31. Kg3 h5 32. Re4 b6
33. gxh5+ Kxh5 34. h4 Rg6 35. hxg5 Rxg5+ 36. Kf4 Re6 37. Rd8 Rg4+ 38. Kf5 {
[#] Rh8+ would kill now.} Rg5+ 39. Kf4 Rg4+ 40. Kf5 {Threatening mate with
Rh8+.} Rg5+ {Precisão Chessbase:Brancas 93% Pretas 96%. Precisão Lichess.org:
Brancas 99% Pretas 99%. Precisão Chess.com:Brancas 98.3% Pretas 98.6%.}
1/2-1/2

[Event "Scherer Chess Master 2024"]
[Site "Joaçaba-SC"]
[Date "2024.05.02"]
[Round "2.4"]
[White "Librelato, Kathie Goulart"]
[Black "Bachmann, Axel"]
[Result "0-1"]
[ECO "B42"]
[WhiteElo "2166"]
[BlackElo "2582"]
[Annotator "Stockfish 16.1"]
[PlyCount "56"]
[EventDate "2024.??.??"]
[EventCountry "BRA"]

{[%evp 14,56,67,66,70,58,90,73,83,48,88,38,59,0,81,35,10,0,0,0,49,44,46,39,43,
12,7,12,26,-16,-13,-106,-106,-219,-185,-186,-188,-443,-343,-345,-345,-670,-682,
-855,-844]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Bc5 6. Nb3 Be7 7.
Qg4 g6 8. Qe2 d6 9. a4 b6 10. O-O ({RR} 10. Be3 Nd7 11. N1d2 Ngf6 12. O-O O-O
13. c4 Rb8 14. Rfd1 Bb7 15. a5 bxa5 16. Nxa5 Ba8 17. Bd4 Nh5 18. g3 Bf6 19.
Bxf6 Qxf6 20. b3 Nc5 21. Bc2 Rb6 22. Qe3 e5 23. Nb1 Ng7 24. Nc3 Nge6 {Leko,P 
(2755)-Rublevsky,S (2676) Moscow 2007 0-1 (37)}) ({RR} 10. Na3 Nd7 11. Nc4 Qc7
12. O-O Bb7 13. Be3 Ngf6 14. a5 b5 15. Nb6 Rb8 16. c4 b4 17. c5 dxc5 18. Rfc1
O-O 19. Nxd7 Nxd7 20. Bxa6 Bxa6 21. Qxa6 Ra8 22. Qc4 Rfc8 23. f4 Qc6 24. h3 Ra6
{Timofeev,A (2566)-Smirnov,P (2530) Ufa RUS 2024 1-0 (56)}) 10... Nc6 {White
is better.} 11. Nc3 Ne5 12. Bd2 $146 ({RR} 12. a5 b5 13. Be3 Nxd3 14. Qxd3 Nf6
15. Bb6 Qd7 16. Rfd1 O-O 17. Qf3 Qb7 18. Rxd6 Bxd6 19. Qxf6 Be7 20. Qd4 Qc6 21.
Nc5 Bb7 22. Nd7 b4 23. Na4 Qxe4 24. Qxe4 Bxe4 25. Nxf8 Bxf8 26. c4 Bc2 {
Videnova,I (2197)-Bojkovic,N (2429) Pozarevac 2009 0-1 (43)}) 12... Bb7 13.
Rac1 (13. h3 $14) 13... h5 $6 {Inaccuracy. Nf6 was best.} (13... Nf6) (13...
Nf6 $11) 14. Kh1 $6 {Inaccuracy. f4 was best.} (14. f4 Nxd3 15. cxd3 Nf6 16. h3
Rc8 17. Be3 d5 18. f5 dxe4 19. Rfd1 (19. dxe4 $16 gxf5 20. Rfd1) 19... gxf5 (
19... exd3 $11 20. Rxd3 Nd5) 20. dxe4 Qc7) 14... Nf6 15. Bf4 h4 16. h3 Rg8 $6 {
Inaccuracy. Nh5 was best.} (16... Nh5 17. Be3) 17. Rfd1 {Bxe5 is the strong
threat.} Qc7 18. Bg5 Nh5 19. Bxe7 Kxe7 20. Nd4 Qc5 21. Qe3 g5 22. Bf1 $6 {
Inaccuracy. Be2 was best.} (22. Be2) (22. Nce2 $11) 22... g4 $17 23. Nce2 $2 {
Mistake. b4 was best.} (23. b4) (23. b4 $17 {keeps fighting.} Qc7 24. b5) 23...
gxh3 24. Qxh3 Bxe4 25. Nf4 $2 {Mistake. c4 was best.} (25. c4 {25.b4 -1.53} Ng4
26. Kg1 Qg5 27. Rc3 Rab8 28. Nf3 Bxf3 29. Qxf3 Qe5 {[%csl Gg4][%cal Re5h2]} 30.
Qh3 Qf6 31. Qf3 Qxf3) (25. Rd3 $142 Ng4 26. Kg1) 25... Ng4 $6 {Inaccuracy.
Nxf4 was best.} (25... Nxf4 26. Qxh4+ Kd7 27. Qxf4 Rg4 28. Qh2 Ng6 29. Nb3 Qc7
30. Kg1 Rh8 31. Qxh8 Nxh8 32. Rd4) 26. Qxh4+ Nhf6 $1 {Threatens to win with ...
Rh8.} 27. Nh3 $2 {Mistake. Kg1 was best.} (27. Kg1 Rh8 28. Qg3 Rag8 29. c4 Qe5
30. a5 Nh5 31. Nd5+ exd5 32. Nc6+ Kf8 33. Qxe5 Nxe5) 27... Rh8 $19 28. Qg3 $6 {
[#] Inaccuracy. Qxf6+ was best.} (28. Qxf6+ Kxf6 29. Kg1 Qe5 {[%csl Gg4][%cal
Re5h2]} 30. f4 Qh5 31. Re1 d5 32. c4 Qh4 33. Ne2 Rac8 (33... Nf2 $142 $1 34.
Rc3 (34. Nxf2 Qh2#) 34... Nxh3+ {[%mdl 64] Discovered Attack} 35. Rxh3 Qxe1 36.
Ng3 Rxh3 37. Nxe4+ dxe4 38. gxh3 Rg8+ 39. Kh2 Qg3+ {[%mdl 64] Double Attack}
40. Kh1 Qg1#) 34. cxd5 {[#]} Bxd5 (34... Nf2 $142 $1 35. Ng5 (35. Nxf2 Qh2#)
35... Nd3 {[%mdl 64] Double Attack, Discovered Attack} 36. Nh3 Rcg8 37. Nc3
Bxg2 38. Rxe6+ fxe6 39. Bxg2 Rxg2+ {[%mdl 64] Double Attack} 40. Kf1 Rf2+ {
[%mdl 64] Double Attack} 41. Kg1 Rg8+ 42. Ng5 Qh2#)) 28... Rxh3+ $1 {[%mdl 576]
Precisão Chessbase:Brancas 28% Pretas 72%. Precisão Lichess.org:Brancas 84%
Pretas 94%. Precisão Chess.com:Brancas 80.2% Pretas 93.0%.} 0-1

[Event "Scherer Chess Master 2024"]
[Site "Joaçaba-SC"]
[Date "2024.05.02"]
[Round "2.5"]
[White "Flores Quillas, Diego Saul Rodri"]
[Black "Fier, Alexandr"]
[Result "1-0"]
[ECO "B66"]
[WhiteElo "2434"]
[BlackElo "2579"]
[Annotator "Stockfish 16.1"]
[PlyCount "41"]
[EventDate "2024.??.??"]
[EventCountry "BRA"]

{[%evp 13,41,39,41,23,23,21,22,23,24,26,266,264,266,264,406,406,403,403,389,
376,481,483,472,477,602,585,692,692,691,691]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4.
Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 a6 8. Nxc6 bxc6 9. O-O-O {e5! is the
strong threat.} Be7 10. Bxf6 {The position is equal.} gxf6 11. Bc4 d5 $4 {
Blunder. Bb7 was best.} (11... Bb7 12. Rhe1 Qa5 13. Kb1 O-O-O 14. Nd5 Qxd2 15.
Nxe7+ Kd7 16. Rxd2 Kxe7 17. Re3 Ra8 18. f4) (11... Bb7 $11) 12. exd5 $18 cxd5 {
[#]} 13. Nxd5 $1 {[%mdl 512]} exd5 $6 {Inaccuracy. Bb7 was best.} (13... Bb7
14. Nxe7 Qxd2+ 15. Rxd2 Kxe7 16. Rhd1 Bc6 17. g3 f5 18. Be2 a5 19. b3 f4 20.
Rd4) (13... Bb7 $142) 14. Bxd5 Ra7 15. Bc6+ Bd7 16. Qe3 Qc8 $146 ({Don't play} 
16... Rc7 17. Rxd7 Rxd7 18. Rd1 $18) ({RR} 16... Rc7 17. Rxd7 Rxd7 18. Rd1 O-O
19. Rxd7 Qc8 20. Qxe7 Qxc6 21. Rd8 Rxd8 22. Qxd8+ Kg7 23. Qd3 Kh8 24. Qf3 Qe6
25. b3 Qe1+ 26. Kb2 Qe5+ 27. Qc3 Qxh2 28. Qxf6+ Kg8 29. g3 a5 30. Qg5+ Kh8 31.
Qxa5 {Palczert,M (2319)-Kochiev,I (2053) chess.com INT 2023 1-0 (42)}) 17. Rhe1
{[%csl Ge1][%cal Re3e7] White is clearly winning.} ({Less strong is} 17. Qxa7
Qxc6 18. Rd3 Be6 $18) 17... Bxc6 18. Qxa7 {[%csl Ge1][%cal Ra7e7]} Bb7 $6 {
Inaccuracy. Bd7 was best.} (18... Bd7 19. Re3 Be6 20. Rc3 Qxc3 21. bxc3 Ba3+
22. Kd2 O-O 23. Qxa6 Bc5 24. Ke1 Kg7 25. Qb5) 19. Qb6 Bc6 {[#]} 20. Rxe7+ $1 {
[%mdl 512]} Kxe7 21. Qc5+ {Accuracy: White = 93%, Black = 40%. Precisão
Chessbase:Brancas 93% Pretas 40%. Precisão Lichess.org:Brancas 98% Pretas 85%.
Precisão Chess.com:Brancas 99.4% Pretas 84.7%.} 1-0

[Event "Scherer Chess Master 2024"]
[Site "Joaçaba-SC"]
[Date "2024.05.03"]
[Round "3.1"]
[White "Delgado Ramirez, Neuris"]
[Black "Do Valle Cardoso, Lucas"]
[Result "1-0"]
[ECO "A20"]
[WhiteElo "2489"]
[BlackElo "2371"]
[Annotator "Stockfish 16.1"]
[PlyCount "69"]
[EventDate "2024.??.??"]
[EventCountry "BRA"]

{[%evp 10,69,0,-12,-15,-13,-15,-16,-14,-11,16,8,3,18,15,11,22,0,8,12,78,81,112,
98,103,82,100,97,98,73,60,-28,0,0,16,27,32,0,0,0,0,0,0,0,58,0,0,0,0,0,489,485,
476,479,455,393,560,544,576,566,29998,29999]} 1. c4 e5 2. d3 Nf6 3. a3 d5 4.
cxd5 Nxd5 5. Nf3 Nc6 6. Nc3 Be7 7. e4 ({RR} 7. e3 Be6 8. Be2 Qd7 9. Qc2 f5 10.
Nxd5 Bxd5 11. b4 e4 12. dxe4 Bxe4 13. Qb3 Bd5 14. Qc2 Be4 15. Qb3 Bd5 16. Qc2 {
1/2-1/2 (16) Topalov,V (2728)-So,W (2773) Zagreb CRO 2022}) 7... Nb6 8. Be2 ({
RR} 8. Be3 Be6 9. d4 exd4 10. Nxd4 Nxd4 11. Qxd4 Qxd4 12. Bxd4 O-O 13. Rc1 c6
14. f4 Rfe8 15. Kf2 Rad8 16. Be3 Nc4 17. Bxc4 Bxc4 18. Rhd1 Bb3 19. Rxd8 Rxd8
20. Ke2 b6 21. Nb1 c5 22. Nd2 Ba4 {Castiglione,M (2247)-Kanli,K (2006)
Katowice POL 2022 1-0 (41)}) 8... O-O {The position is equal.} 9. O-O Bg4 $146
({RR} 9... Be6 10. Be3 Qd7 11. a4 a6 12. a5 Nc8 13. Qa4 b5 14. axb6 Nxb6 15.
Qd1 Bg4 16. h3 Bxf3 17. Bxf3 Nd4 18. Bg4 Qd6 19. Ra2 Rfd8 20. Bxd4 Qxd4 21. Be2
Bb4 22. Qc2 g6 23. g3 a5 24. Kg2 {Ragozin,E (2510)-Tiviakov,S (2640) Elista
1994 0-1 (41)}) ({RR} 9... Be6 10. a4 a6 11. Be3 Bf6 12. a5 Nc8 13. Na4 Nd6 14.
Nc5 Bc8 15. Qb3 Nb5 16. Rfc1 Ncd4 17. Nxd4 exd4 18. Bd2 Re8 19. Qd1 Qe7 20. Bf1
Be5 21. Qc2 Bd6 22. g3 f6 23. Bg2 c6 24. Ra4 {Ragozin,E (2480)-Vink,N (2310)
Utrecht 1998 1-0 (48)}) ({RR} 9... a5 10. Nb5 Be6 11. d4 Nxd4 12. Nfxd4 exd4
13. Nxd4 Bc4 14. Nf5 Bf6 15. Bxc4 Nxc4 16. Qc2 b5 17. Rd1 Qe8 18. a4 c6 19. Rb1
Rd8 20. Rxd8 Qxd8 21. b3 Nd6 22. Ng3 c5 23. Be3 Bd4 24. Bxd4 {Arutinian,D 
(2425)-Tsereteli,T (2288) Batumi 2003 1/2-1/2 (104)}) 10. Be3 Bxf3 11. Bxf3 Nd4
12. Bg4 c6 13. Ne2 Bc5 14. Kh1 a5 $6 {Inaccuracy. Nc8 was best.} (14... Nc8) (
14... Nc8 $11 {keeps the balance.}) 15. Rc1 $16 Qd6 16. f4 f6 17. Nxd4 Bxd4 18.
Bxd4 Qxd4 19. Be6+ Kh8 20. f5 $6 {Inaccuracy. Qh5 was best.} (20. Qh5 $1 g6) (
20. Qh5 $14 g6 21. Qh6) 20... Rfd8 21. Rf3 $1 {[%cal Rf3g3] aiming for Rg3.}
Nd7 (21... Qxb2 $2 22. Rb1 $16) 22. Rg3 {Black must now prevent Qh5.} Nf8 23.
Qg4 {[%csl Gg3][%cal Rg4g7]} (23. Qh5 $5 {[%cal Rg3g7]} Nxe6 24. fxe6 $11)
23... Nxe6 24. fxe6 {[%csl Gg3][%cal Rg4g7]} Rg8 25. Rh3 h6 26. Qg6 $40 {
[%mdl 128] Rxh6+! would kill now. White has some attack.} Rge8 27. g4 (27. Rg3
Re7 $17) ({Better is} 27. Rxh6+ $1 $14 gxh6 28. Qxh6+ Kg8 29. Qxf6) 27... Re7
$1 $11 ({Not} 27... Qxb2 $2 28. Rg1 $18) ({Avoid the trap} 27... Rxe6 $2 28. g5
$18) 28. Rf1 {Threatens to win with g5.} Qxb2 {[#]} 29. Rxf6 $1 {[%mdl 512]
White wants to mate with Rxh6+!} Rg8 $4 {[#] Blunder. Qc1+ was best.} (29...
Qc1+ 30. Kg2 Rxe6 31. g5 Qd2+ 32. Kf1 Rxf6+ 33. gxf6 {[%csl Gf6][%cal Rg6g7]}
Qd1+ 34. Kf2 {[%csl Gf6][%cal Rg6g7]} Qd2+) ({But not} 29... Qxa3 $2 30. Qg5 $3
$18 {[%mdl 512]}) (29... Qc1+ $11 {and Black stays safe.} 30. Kg2 Qc2+ 31. Rf2
Qb3) (29... gxf6 30. Rxh6+) 30. Qg5 $3 $18 {[%mdl 512]} Qb1+ 31. Kg2 Qc2+ 32.
Rf2 Qc5 {[#]} (32... Qxf2+ $142 33. Kxf2 Rxe6) 33. d4 $1 {[%mdl 512]} Qd6 {[#]}
(33... Qxd4 34. Qxe7) 34. Rf6 $3 {[%mdl 512] White threatens Rfxh6+! and mate.}
Rxe6 $4 {[#] Checkmate is now unavoidable. Qxe6 was best.} (34... Qc7 35. Qg6 (
35. Rfxh6+ $142 $1 {[%mdl 512]} gxh6 36. Qf6+ Rgg7 37. Qxh6+ Rh7 38. Qf8#)
35... Qc8 (35... Qb6 $18 36. Qg5 Qb2+ 37. Rf2 {[%mdl 64] Discovered Attack}
Qxf2+ 38. Kxf2 Rf8+ 39. Ke2 Rxe6) 36. Rf7 Qc7 37. Rf6 (37. Rxh6+ $142 $1 {
[%mdl 512]} gxh6 38. Qxh6#) 37... Qd6 (37... Qb6 $18 38. Qg5 Qb2+ 39. Rf2 {
[%mdl 64] Discovered Attack} Qxf2+ 40. Kxf2 Rxe6) 38. Qg5 (38. Qf5 $142 $3 {
[%mdl 512]} Rxe6 39. Rxe6 Qf8 40. Qxe5 Kh7 41. Re7 Qxe7 42. Qxe7 Kg6 43. g5)
38... Qc7 {[#]} (38... Qxe6 $18 39. Rxe6 Rxe6) 39. Qg6 (39. Rfxh6+ $142 $1 {
[%mdl 512]} gxh6 40. Qf6+ Rgg7 41. Qxh6+ Rh7 42. Qf8#) 39... Rge8 (39... Qb6
$18 40. Qg5 Qb2+ 41. Rf2 {[%mdl 64] Discovered Attack} Qxf2+ 42. Kxf2 Rxe6) 40.
Rf7) (34... Qxe6 35. Rxe6 Rxe6 36. Qd2 exd4 37. g5 c5 38. gxh6 Rg6+ 39. Rg3
gxh6 40. Rxg6 Rxg6+ 41. Kf3) (34... gxf6 35. Qxh6+) 35. Rhxh6+ $1 {[%mdl 576]
Precisão Chessbase:Brancas 79% Pretas 64%. Precisão Lichess.org:Brancas 96%
Pretas 83%. Precisão Chess.com:Brancas 96.4% Pretas 86.1%.} 1-0

[Event "Scherer Chess Master 2024"]
[Site "Joaçaba-SC"]
[Date "2024.05.03"]
[Round "3.2"]
[White "Bachmann, Axel"]
[Black "Perdomo, Leandro"]
[Result "1/2-1/2"]
[ECO "E71"]
[WhiteElo "2582"]
[BlackElo "2380"]
[Annotator "Stockfish 16.1"]
[PlyCount "147"]
[EventDate "2024.??.??"]
[EventCountry "BRA"]

{[%evp 10,147,65,64,94,74,80,76,71,64,67,56,57,68,78,51,53,57,58,58,46,50,51,
46,52,49,74,53,73,-1,0,0,0,0,205,205,221,16,17,33,23,23,19,18,17,21,17,27,14,
19,28,32,33,39,40,1,371,189,223,202,224,179,178,117,134,143,135,134,147,132,
130,135,173,158,149,136,162,60,56,63,67,20,20,20,198,122,117,103,103,103,89,94,
97,89,89,84,209,227,237,238,216,204,288,301,279,284,281,218,342,28,29,13,11,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 g6 3. Nc3
Bg7 4. e4 d6 5. h3 O-O 6. Be3 Nc6 7. d5 Ne5 {[%cal Bc6e5,Be5d7,Bd7c5][%mdl 32]}
8. f4 Ned7 {White is better.} 9. g4 c6 10. Nf3 cxd5 11. cxd5 b6 12. Nd4 Nc5 13.
Nc6 Qe8 14. Bg2 Ba6 15. Bxc5 bxc5 16. Qd2 Nd7 $146 ({RR} 16... e6 17. O-O-O
exd5 18. exd5 Qd7 19. Rhe1 Rae8 20. Bf3 h6 21. g5 Nh7 22. Bg4 Qc7 23. h4 h5 24.
Bh3 f5 25. gxf6 Bxf6 26. Rg1 Kh8 27. Rxg6 Bxh4 28. Be6 Bf6 29. Rdg1 Rxe6 30.
dxe6 Qxc6 31. Nd5 {Robson,R (2696)-Firouzja,A (2777) Saint Louis USA 2023 1-0 
(44)}) 17. O-O-O c4 18. e5 {exd6 is the strong threat.} Nc5 $1 19. exd6 ({
White should play} 19. Kb1 $16) 19... exd6 $11 20. Rhe1 Nd3+ {[%mdl 64] Double
Attack} 21. Kb1 Qd7 $4 {Blunder. Nxe1 was best.} (21... Nxe1) (21... Nxe1 $11
22. Rxe1 Qd7) 22. Re7 $18 Qc8 23. f5 $2 {Mistake. Be4 was best.} (23. Be4 $1
Bb7 24. f5 $1 Nc5 25. h4 Bxc6 (25... Bxc3 $142 26. Qxc3 Nxe4 27. Rxe4 Bxc6) 26.
dxc6 Bxc3 27. Qxc3 Nxe4 28. Rxe4 Qxc6 29. Rxc4 Qb5) (23. Be4 $1 $18) 23... Rb8
$1 $11 {[%cal Rb8b2]} 24. Nxb8 Qxb8 25. Bf1 {[%cal Rf1d3]} Bf6 26. Re4 {
[%cal Rf1d3]} Bxc3 27. Qxc3 {[%cal Rf1d3]} Nf2 28. Red4 {Strongly threatening
Re1.} Nxd1 29. Rxd1 Re8 30. Bxc4 Rc8 $1 31. Rd4 $36 {[%mdl 2048] White is more
active.} Qb6 32. a3 Re8 $4 {Blunder. gxf5 was best.} (32... gxf5 33. Ka2 Rxc4
34. Rxc4 Bxc4+ 35. Qxc4 fxg4 36. Qxg4+ Kf8 37. Qg3 Qc5 38. Qd3 Qc1 39. b4) (
32... gxf5 $11 {and Black stays safe.} 33. gxf5 Rxc4 34. Rxc4 Bxc4 35. Qxc4 Qe3
) 33. f6 $6 {Inaccuracy. Bxa6 was best.} (33. Bxa6 Qxa6 34. Qc6 Qf1+ 35. Ka2
Re1 36. Qxd6 gxf5 37. Qd8+ Kg7 38. Qg5+ Kf8 39. Qxf5 Qxf5) (33. Bxa6 $142 Qxa6
34. Qc6) 33... Bb7 34. Rd1 Qf2 35. Bb5 Rc8 36. Re1 (36. Qd4 $18 Qc2+ 37. Ka2)
36... h6 37. Bc6 Ba6 38. Qe3 Qxf6 39. Qxa7 Bd3+ 40. Ka1 Qh4 41. Re3 Qf6 {
And now ...Qf1+ would win.} 42. Re1 Qh4 43. Re3 $6 {Inaccuracy. Rh1 was best.}
(43. Rh1) (43. Rh1 $18) 43... Qf6 $1 $14 {[%cal Rf6f1] Threatens to win with ..
.Qf1+.} 44. Qa5 $1 Qf2 45. Qe1 Qc2 46. Ba4 Qc4 $6 {[#] Inaccuracy. Qxa4 was
best.} (46... Qxa4 47. Rxd3 Qb5 48. Rd4 Qb3 $1 49. Qd1 Qxh3 50. Ka2 Qe3 51. Qd3
Qxd3 52. Rxd3 f5 53. gxf5) (46... Qxa4 $11 {and Black has nothing to worry.}
47. Rxd3 Qb5) 47. Qc3 $1 {[%mdl 512] Inaccuracy. Qd1 was best.} Qxc3 $16 48.
bxc3 {[%mdl 4096] Endgame KRB-KRB} Bc4 49. Bc6 f5 50. gxf5 gxf5 51. Rf3 $1 {
[%cal Rf3f5]} Rf8 52. Rf4 Bd3 {[#]} (52... Ba6 $16 {was necessary.}) 53. c4 $1
$18 Kg7 54. Kb2 Kf6 55. Kc3 Kg5 $6 {Inaccuracy. Ke5 was best.} (55... Ke5 {[#]}
56. Rf2 $1) (55... Ke5 {keeps fighting.}) 56. Rf2 Be4 57. a4 {[%cal Ba3a4,
Ba4a5][%mdl 32]} Kh4 58. a5 Kg3 (58... f4 $142 59. Kd4 Kg3) 59. Rb2 $4 {
Blunder. Re2 was best.} (59. Re2 Bg2 60. Re8 Rf7 61. c5 f4 62. cxd6 f3 63. Re3
Bxh3 64. Kd4 h5 65. a6 h4) (59. Re2 $18) 59... f4 $11 60. Kd4 Bg2 {The
position is equal.} 61. a6 $6 {Inaccuracy. c5 was best.} (61. c5 dxc5+ 62. Kxc5
Rc8 $1 63. Rb3+ Kh2 $1 64. Kd4 Rf8 $1 65. Rb2 f3 $1 66. Ke3 Kg3 67. d6 f2)
61... f3 62. a7 f2 63. Rb1 f1=Q 64. Rxf1 Bxf1 65. c5 dxc5+ 66. Kxc5 Bxh3 67. d6
h5 68. Kb6 h4 69. Kc7 Bg4 70. d7 Bxd7 $1 (70... Be6 $2 {[%mdl 8192] 70...Bxd7
0.00}) 71. Bxd7 Ra8 72. Kb7 Rxa7+ 73. Kxa7 h3 {[#]} 74. Bxh3 $1 {[%mdl 512]
Precisão Chessbase:Brancas 64% Pretas 78%. Precisão Lichess.org:Brancas 92%
Pretas 92%. Precisão Chess.com:Brancas 90.7% Pretas 91.3%.} 1/2-1/2

[Event "Scherer Chess Master 2024"]
[Site "Joaçaba-SC"]
[Date "2024.05.03"]
[Round "3.3"]
[White "Quintiliano, Renato R."]
[Black "Di Berardino, Diego Rafael"]
[Result "1-0"]
[ECO "E10"]
[WhiteElo "2490"]
[BlackElo "2489"]
[Annotator "Stockfish 16.1"]
[PlyCount "75"]
[EventDate "2024.??.??"]
[EventCountry "BRA"]

{[%evp 15,75,8,9,18,21,12,18,-7,-2,-24,-19,-8,20,19,16,6,21,22,26,26,28,16,33,
34,39,40,305,309,300,297,290,305,355,348,373,373,409,404,400,398,362,348,348,
350,333,332,381,371,407,408,412,411,386,394,427,419,479,475,526,526,510,465]} 
1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. e3 Be7 5. Nc3 O-O 6. a3 b6 7. Bd3 Bb7 ({RR} 
7... dxc4 8. Bxc4 Bb7 9. O-O c5 10. dxc5 Qxd1 11. Rxd1 Bxc5 12. Ne5 Nc6 13.
Nxc6 Bxc6 14. Bd2 Rfd8 15. Be1 Bb7 16. Kf1 Kf8 17. b4 Bd6 18. h3 Be5 19. Rxd8+
Rxd8 20. Rc1 Rc8 21. Bd3 Nd5 22. Be4 {Karpov,A (2619)-Gelfand,B (2758) Moscow
2009 0-1}) ({RR} 7... dxc4 8. Bxc4 c5 9. O-O cxd4 10. exd4 Bb7 11. Bd3 Nc6 12.
Bc2 Rc8 13. Qd3 g6 14. Bh6 Re8 15. Rad1 Nd5 16. Rfe1 Nxc3 17. bxc3 Bxa3 18. h4
Bf8 19. Bxf8 Rxf8 20. h5 Qf6 21. hxg6 hxg6 22. Re4 {Andrews,T (2133)
-Ambartsumova,K (2418) chess.com INT 2024 0-1 (36)}) 8. cxd5 exd5 9. b4 Nbd7
10. Rb1 $146 ({RR} 10. O-O Rc8 11. Bb2 Ne4 12. Rc1 c5 13. dxc5 bxc5 14. bxc5
Ndxc5 15. Bb1 Bf6 16. Nxe4 Nxe4 17. Rxc8 Qxc8 18. Bxf6 Nxf6 19. Qd4 a6 20. Ng5
Ne4 21. Nxe4 dxe4 22. Bxe4 Bxe4 23. Qxe4 Re8 24. Qb1 Qe6 {Giro Castellet,E 
(1837)-Aguilera Malagon,P (1738) Santa Eulalia de Roncana 2014 1-0 (52)}) 10...
a6 11. Qb3 {The position is equal.} Bd6 12. a4 c6 13. O-O a5 14. bxa5 Rxa5 15.
Ba3 Qe7 16. Bxd6 Qxd6 17. Rfc1 Rfa8 18. Bf5 g6 19. Bxd7 Nxd7 20. Ne5 $36 {
[%mdl 2048] White is more active.} R8a6 $4 {[#] Blunder. Nxe5 was best.} (20...
Nxe5) ({Black should try} 20... Nxe5 $14 21. dxe5 Qxe5) 21. Ne4 $1 $18 {
[%cal Re4d6][%mdl 512]} Qe7 (21... dxe4 22. Qxf7+) 22. Nxd7 dxe4 23. Nxb6 Rg5
24. Qb4 Qe6 {Threatens to win with ...Qh3.} 25. Rc5 h6 {[#]} 26. h3 $1 {
[%mdl 512]} Bc8 (26... Qxh3 27. Rxg5) 27. Rxg5 hxg5 28. Qc5 Qa2 29. Rc1 Be6 30.
Qxg5 Kh7 31. Qd8 Qd2 32. Rxc6 Qe1+ 33. Kh2 {aiming for Qe7.} Qxf2 34. Qg5 Ra7
35. d5 Ra5 36. Rd6 {White is clearly winning.} Rc5 {intending ...Rc1.} 37. Rxe6
Rc1 38. Rf6 {. Precisão Chessbase:Brancas 92% Pretas 61%. Precisão Lichess.
org:Brancas 99% Pretas 92%. Precisão Chess.com:Brancas 98.5% Pretas 90.2%.}
1-0

[Event "Scherer Chess Master 2024"]
[Site "Joaçaba-SC"]
[Date "2024.05.03"]
[Round "3.4"]
[White "Cubas, Jose Fernando"]
[Black "Flores Quillas, Diego Saul Rodri"]
[Result "0-1"]
[ECO "B83"]
[WhiteElo "2421"]
[BlackElo "2434"]
[Annotator "Stockfish 16.1"]
[PlyCount "108"]
[EventDate "2024.??.??"]
[EventCountry "BRA"]

{[%evp 20,108,23,26,30,30,23,4,29,11,16,0,0,0,0,0,60,57,63,60,58,60,65,0,0,0,
-3,-8,-8,-25,-36,-41,-24,-57,5,7,8,-46,8,-3,8,8,8,11,9,11,24,0,0,0,0,-2,-2,-1,
0,0,0,0,0,-15,-4,-38,-35,-39,-41,-34,0,0,0,-7,-6,-6,0,-10,-8,-10,-8,-11,-12,
-10,-10,-88,-95,-270,-282,-318,-310,-29995,-29996,-29996,-531]} 1. e4 {Ftacnik,
L Ftacnik,L} c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 Be7 7. O-O
O-O 8. f4 Nc6 9. Be3 e5 10. Nxc6 ({RR} 10. Nb3 exf4 11. Rxf4 Be6) ({RR} 10.
fxe5 dxe5 11. Nf5) 10... bxc6 11. Kh1 ({RR} 11. Qe1 Qc7 12. Qg3 exf4 13. Bxf4
Be6 14. Kh1 Kh8 15. e5 dxe5 16. Bxe5 Qb7 17. Bd3 Ne8 18. Ne4 f6 19. Bc3 Rd8 20.
Rae1 Bg8 21. Qh3 Bb4 22. Bxb4 Qxb4 23. a3 Qa5 24. Ng3 Nd6 25. Nh5 Qg5 {
Sindarov,J (2054)-Flores Quillas,D (1684) Juiz de Fora 2014 1-0 (38)}) 11... a5
$146 ({RR} 11... Be6 12. Bf3 Bc4 ({RR} 12... exf4 13. Bxf4 Rb8) 13. Re1 Nd7 ({
RR} 13... exf4 14. Bxf4 Ne8) 14. b3 Ba6 ({RR} 14... exf4 15. Bxf4 Bf6 16. Re3
Qa5 17. Qe1 Be6 18. Bxd6) 15. f5 Nf6 ({RR} 15... Qc7 16. g4) 16. g4 h6 ({RR} 
16... d5 17. exd5 Bb4 18. Bd2 cxd5 19. Rxe5 Qc7 20. Qe1) 17. g5 ({RR} 17. h4
Ne8) 17... hxg5 18. Bxg5 Nh7 ({RR} 18... Ng4 19. Bxe7 Nf2+ 20. Kg2 Nxd1 21.
Bxd8 Nxc3 22. Ba5 ({RR} 22. Be7 Rfe8 23. Bxd6 Rad8 24. Bb4 Rd2+ 25. Kg3 Rxc2
26. Bxc3 Rxc3 27. Rac1 Rxc1 28. Rxc1) 22... Nb5 23. Rad1 Nd4 24. Rd2) ({RR} 
18... Nxe4 19. Nxe4 Bxg5 20. Nxg5 Qxg5 21. Qxd6 Qxf5 22. Bxc6 Rad8 23. Qxe5
Qxc2 24. Rac1) 19. Be3 Bb7 ({RR} 19... Bg5 20. Qd2 ({RR} 20. Bf2 Bh4 21. Bxh4
Qxh4 22. Qxd6 Qh3 23. Re3 Ng5 24. Qxe5 Nxf3 25. Qf4 Bf1 26. Qxf3 Bg2+ 27. Qxg2
Qxe3 28. f6 g6 29. Qg3 Qxg3 30. hxg3 Rad8) 20... Qf6 21. Rad1 Rfd8 22. Rg1 Bxe3
23. Qxe3) 20. Rg1 Bf6 ({RR} 20... Bg5 21. Qd2) 21. Rg3 d5 ({RR} 21... Qe7 22.
Qd2) 22. exd5 cxd5 ({RR} 22... e4 23. Nxe4 Bxa1 24. Qxa1 f6 25. Nc5) 23. Nxd5
e4 ({RR} 23... Bxd5 24. Bxd5 Rc8 25. c4) 24. Nxf6+ Qxf6 ({RR} 24... Nxf6 25.
Be2) 25. Be2 ({RR} 25. Bd4 exf3 ({RR} 25... Rad8 26. Bxf6 Rxd1+ 27. Rxd1 Nxf6
28. Be2) 26. Bxf6 f2+ 27. Rg2 Nxf6 28. Qd4 Rfe8 29. Qxf2 Ng4 30. Qg3 Re2 31.
Qxg4 Rxg2 32. Qxg2 Bxg2+ 33. Kxg2) 25... Qxf5 26. Qd4 {Kamsky,G (2720)
-Khalifman,A (2628) Las Vegas 1999 CBM 072 [Ftacnik,L] 1-0 (37)} {RR} f6 27.
Rf1 Qc8 28. Bh6) ({RR} 11... exf4 12. Bxf4 Be6 13. Bf3 Qb8 ({RR} 13... Qb6 14.
b3 Rad8 ({RR} 14... Rfd8 15. Qe1 Nd7 16. Nd5 cxd5 17. exd5 Bg4 18. Qxe7 Bxf3
19. Rxf3 Nf6 20. Be3 Qa5 21. Rxf6 gxf6 22. Qxf6 Re8 23. Qg5+ Kf8 24. Bd2) 15.
Qe1 ({RR} 15. Qe2 Qa5 16. Nd1 Nd7 17. Bd2 Qc7 18. Qe1 Rde8 19. Ne3 Ne5 20. Be2
Ng6 21. Nf5 Bxf5 22. exf5 Bh4 23. Qd1 Qe7 24. Ba6 Ne5 25. Qh5 Bf6) 15... Kh8 ({
RR} 15... Rfe8 16. Rd1 Bg4 17. Qe2 Qa5 18. Bd2 Qh5 19. Bxg4 Qxg4 20. Qf2 Rd7
21. Bf4 Nh5 22. Bxd6 Bxd6 23. Rxd6 Ng3+ 24. Kg1 Nxf1 25. h3 Rxd6 26. hxg4) 16.
Rd1 Qa5 17. Bd2 Qe5 18. Ne2 d5 19. Bf4 Qb2 20. e5 Ne4 21. Nd4 Bc5 22. Nxe6 fxe6
23. Bxe4 dxe4 24. Qxe4 Rxd1 25. Rxd1 Qxa2 26. h3) 14. b3 Qb4 15. Qd2 ({RR} 15.
Ne2 d5) 15... Rfd8 16. Rad1 Rac8 17. Qe3 ({RR} 17. Qd4 Qa5 18. Bd2 Qa3) 17...
d5 18. Be5 ({RR} 18. exd5 Nxd5 19. Bxd5 cxd5 20. Be5 Re8) 18... Qa5 ({RR} 18...
dxe4 19. Nxe4 Nd5 20. Qe2) 19. exd5 ({RR} 19. Qg5 Kh8 20. Qg3 h6) 19... Nxd5
20. Nxd5 ({RR} 20. Bxd5 cxd5 21. Rd3) 20... cxd5 21. Bh5 ({RR} 21. Rf2 h6 22.
Re2 Bb4) 21... d4 ({RR} 21... Rxc2 22. Bxg7 Kxg7 23. Bxf7 d4 ({RR} 23... Bxf7
24. Qxe7 Rf8 25. Rd4) 24. Qxe6 Qg5 25. Qe4) 22. Qe4 ({RR} 22. Rxd4 Rxd4 23.
Qxd4 f6 24. Bg4 Bxg4 25. Qxg4 Qa6) 22... g6 23. Bf3 Bf5 24. Qf4 Bg5 ({RR} 24...
Rxc2 25. Be4 Re2 26. Bc7 ({RR} 26. Bxf5 Qxe5 27. Bd3 Qxf4 28. Rxf4 Rxa2) 26...
Rxe4 27. Bxa5 Rxf4 28. Rxf4 Rd5 29. Bc3 Bc5) ({RR} 24... Bxc2 25. Bb7 Rf8 26.
Rc1 g5 27. Qxd4) 25. Qxg5 Qxe5 26. Bg4 {Svidler,P (2727)-Movsesian,S (2732)
Nanjing 2008 CBM 128 [Ftacnik,L] 0-1 (47)} ({RR} 26. c4 Qe3 27. Qf6 Qe6 28.
Qxe6 Bxe6 29. Rd2) {RR} 26... f6 27. Rxf5 Qxf5 28. Bxf5 fxg5 29. Bxc8 Rxc8 30.
Rd2 Kf7 31. Kg1 a5 32. Rxd4 Rxc2 33. Ra4 Rc5) ({RR} 11... Be6 12. Bf3 Bc4 13.
Re1 Nd7 14. b3 Ba6 15. f5 Nf6 16. g4) ({RR} 11... exf4 12. Bxf4 Be6 13. Qe1 Rb8
14. b3 Nd7 15. Rd1 Qc7 16. Bf3 Ne5 17. Ne2 Bf6 18. c4 Rfe8 19. Qd2 Rbd8 20. Nd4
Qc8 21. Qa5 Ng6 22. Bg3 Be5 23. Bxe5 Nxe5 24. Qxa7 Qa8 25. Qxa8 Rxa8 26. a4 {
Kiolbasa,O (2422)-Sliwicka,A (2311) Poland POL 2023 1-0 (82)}) ({RR} 11... exf4
12. Bxf4 Be6 13. Qd4 Qb6 14. Rad1 Rfd8 15. Qxb6 axb6 16. h3 b5 17. a3 Ne8 18.
Be3 Rdb8 19. Bf3 b4 20. axb4 Rxb4 21. b3 Rc8 22. Bd2 Rbb8 23. Ra1 Bf6 24. Ra6
Be5 25. Na4 c5 26. Rb1 {Kuzmin,G (2505)-Parameswaran,T New Delhi 1984 0-1 (42)}
) ({RR} 11... exf4 12. Bxf4 Be6 13. Bf3 d5 14. exd5 Nxd5 15. Nxd5 Bxd5 16. Bxd5
Qxd5 17. Qxd5 cxd5 18. Rad1 Rfd8 19. Rfe1 Kf8 20. Be5 f6 21. Bd4 Rd7 22. g3 Rc8
23. Re2 Bc5 24. Kg2 Kf7 25. Kf3 Bxd4 26. Rxd4 {Kiolbasa,O (2210)-Fuskova,M 
(2006) Karpacz 2015 1-0 (48)}) 12. Qe1 a4 13. a3 Qa5 {The position is equal.}
14. fxe5 dxe5 15. Qg3 Be6 16. Bg5 {Strongly threatening Rxf6.} Kh8 17. Qh4 {
[%cal Rf1f6]} Rfe8 (17... Kg8 $11) 18. Rxf6 $1 $14 Bxf6 19. Bxf6 gxf6 20. Qxf6+
Kg8 21. Rf1 $2 {Mistake. Rd1 was best.} (21. Rd1 Rad8 $1 22. Rf1 Rd6 (22... Rb8
$1 $14) 23. Qg5+ Kf8 24. h3 Qd8 (24... Re7 $16) 25. Qh5 Kg7 26. Nxa4 f6 27. Nc5
Qe7) (21. Rd1 $14) 21... Qd8 $1 $11 {[%cal Rd8f6] White must now prevent ...
Qxf6.} 22. Qxe5 Ra5 23. Qg3+ Kh8 24. Rd1 Qb8 25. Qf2 Qe5 (25... Qxb2 $6 26.
Qf6+ Kg8 27. Rd8 $16) 26. Qb6 Rc5 $6 {Inaccuracy. Raa8 was best.} (26... Raa8
27. Qe3 f5 28. h3 Reb8 29. Qg5 $1 Rg8 30. Qh5 Qf6 31. Bd3 Raf8 32. exf5 $1 Bxf5
33. Rf1 (33. Bc4 $15 Rg5 34. Qe2)) ({Black should try} 26... Raa8 $15) 27. Nxa4
Ra5 28. b3 $6 {Inaccuracy. Nc3 was best.} (28. Nc3 Raa8 29. Qe3 f5 30. a4 Bf7
31. Kg1 Rad8 32. Rf1 Bg6 33. b3 fxe4 34. Nd1 Rd6) 28... Raa8 29. Qc5 ({Of
course not} 29. Qxc6 Rec8 $17) 29... Qxc5 (29... Ra5 {with more complications.}
30. Qc3 Qxc3 31. Nxc3 f5 32. Bd3 Rc5) 30. Nxc5 Rxa3 31. Kg1 Ra5 32. Nxe6 Rxe6 {
[%mdl 4096] Endgame KRR-KRB} 33. Rd8+ Kg7 34. Bd3 Ra1+ 35. Kf2 Rf6+ 36. Ke3 Rh1
37. h3 Rg6 38. Kf2 Rd1 39. g4 Rf6+ 40. Ke3 Rh1 41. e5 Rxh3+ 42. Ke4 Re6 43. Rd7
Kf8 44. Bc4 Re7 45. Rd6 Rc3 46. Rxc6 Rxc2 47. b4 Rc1 {White should prevent ...
Re1+.} 48. Kf5 Kg7 49. b5 Rb1 50. Bd3 $6 {Inaccuracy. g5 was best.} (50. g5 Rb4
51. Rc5 Rb7 52. Rc8 Rb1 53. Ke4 Re7 54. Rc5 Re1+ 55. Kf5 Rc1 56. Rc8 Rc2) (50.
g5 $11) 50... Re1 $17 51. Rc5 $4 {[#] Blunder. b6 was best.} (51. b6 R1xe5+) (
51. b6 $17 {is a better defense.}) 51... Rd7 $1 $19 {[%cal Rd7d3]} 52. Bc4 {[#]
} Rd2 $1 {[%cal Rd2f2] ( -> ...Rf2+)} 53. b6 $4 {Checkmate is now unavoidable.
Bxf7 was best.} (53. Bxf7 {53.g5 -2.87} Rf2+ 54. Ke6 Rxf7 55. Kd6 Rb7 56. g5
Rd1+ 57. Kc6 Re7 58. Rc2 Re6+ 59. Kc7 Rb1) (53. g5 $19) 53... Rf2+ 54. Kg5 Rh1
$4 {Lost forced checkmate sequence. h6+ was best. Precisão Chessbase:Brancas
61% Pretas 86%. Precisão Lichess.org:Brancas 88% Pretas 95%. Precisão Chess.
com:Brancas 89.2% Pretas 93.4%.} (54... h6+ 55. Kh4 Re3 {[%cal Rf2h2]} 56. Bf1
Rh2+ 57. Bh3 Rhxh3#) (54... h6+ $142 55. Kh4 Re3 56. g5 Rf4+ 57. Kh5 Rh3#) 0-1

[Event "Scherer Chess Master 2024"]
[Site "Joaçaba-SC"]
[Date "2024.05.03"]
[Round "3.5"]
[White "Fier, Alexandr"]
[Black "Librelato, Kathie Goulart"]
[Result "1-0"]
[ECO "D31"]
[WhiteElo "2579"]
[BlackElo "2166"]
[Annotator "Stockfish 16.1"]
[PlyCount "77"]
[EventDate "2024.??.??"]
[EventCountry "BRA"]

{[%evp 16,77,52,23,21,0,0,0,155,159,156,29,52,55,58,-11,-10,-7,-6,-12,-5,-9,
168,180,295,289,287,285,377,380,375,368,376,368,359,360,372,234,239,239,467,
252,375,127,129,135,140,139,140,139,155,8,350,339,455,349,335,275,344,346,449,
449,581,567]} 1. d4 {Krasenkow,M} d5 2. c4 e6 3. Nc3 c6 4. e4 dxe4 5. Nxe4 Bb4+
6. Bd2 Qxd4 7. Bxb4 Qxe4+ 8. Be2 Na6 9. Bd6 Qxg2 10. Bf3 ({RR} 10. Qd2 e5 ({RR
} 10... Qxh1 11. O-O-O) ({RR} 10... Nf6) 11. Bxe5 ({RR} 11. Bf3 Qg6 12. Bxe5
Be6 13. O-O-O Nf6 14. Ne2 Qf5 15. Qc3 Nb4 16. Qxb4 Qxe5 17. Rhe1 Qc7 18. Nd4
O-O-O) 11... Bf5 ({RR} 11... Be6 12. O-O-O) ({RR} 11... Qxh1 12. O-O-O) 12. Bf3
({RR} 12. O-O-O Qe4 ({RR} 12... Ne7 13. Nf3 f6 14. Rhg1 Qh3 15. Rxg7 fxe5 16.
Rxe7+ Kxe7 17. Qd6+) {RR} 13. Bd3 Qxd3 14. Qxd3 Bxd3 15. Bxg7 Nb4) 12... Qg6
13. O-O-O Nc5 14. Qe3 Bb1 ({RR} 14... Ne6 15. Ne2) 15. Rd2 ({RR} 15. Bd6+ Ne6
16. Qb3 O-O-O 17. Bxc6 Nc5 18. Bxc5 Rxd1+ 19. Qxd1 Qxc6 20. Qg4+ Kb8 21. Qg3+
Kc8 22. Kxb1 Qxh1 23. Qxg7 Qe4+ 24. Kc1 Qxc4+ 25. Kd1 Qxc5 26. Qxh8) 15... Bxa2
16. Bd6+ ({RR} 16. Rd6 Nb3+ 17. Kd1 Qb1+ 18. Ke2 Qc2+ 19. Ke1 Ne7 20. Bxg7)
16... Ne6 17. Be4 Qh6 18. f4 Nf6 19. Nf3 Bxc4 ({RR} 19... Nxe4 20. Qxe4 O-O-O
21. Ne5 Rhe8 ({RR} 21... Qf6 22. Nxc6 Rxd6 23. Rxd6 bxc6 24. Qxc6+ Kb8 25. Qb5+
Ka8) 22. Nxf7 ({RR} 22. Nxc6 Rxd6 23. Rxd6 Qxf4+ 24. Qxf4 Nxf4) 22... Nd4 23.
Qxd4 Qg6 24. f5 Qxf7 25. Qxa7 Rxd6 26. Qa8+ Kc7 27. Qa5+ Kb8 28. Rxd6 Qxc4+ 29.
Qc3) 20. Re1 O-O-O ({RR} 20... Nd5 21. Qf2 Rd8) ({RR} 20... Bd5 21. Bf5 Qh5 22.
Ng5 O-O-O 23. Nxe6 fxe6 24. Bxe6+ Bxe6 25. Qxa7 Rxd6 26. Rxd6 Bd7 27. Qa8+ Kc7
28. Rxd7+ Nxd7 29. Qxh8) 21. Bxc6 Ba6 ({RR} 21... bxc6 22. Qxa7 Rxd6 23. Qa8+
Kc7 24. Qa7+) 22. Ng5 Nxg5 ({RR} 22... Rxd6 23. Rxd6 bxc6 24. Nxf7 Qxf4 25.
Rxc6+ ({RR} 25. Qxf4 Nxf4 26. Nxh8 Kc7 27. Nf7 Nd3+ 28. Rxd3 Bxd3) 25... Kb7
26. Rxe6 Rc8+ 27. Kb1 Qf5+ 28. Ka1 Qa5+ 29. Qa3) 23. Bd7+ Kxd7 ({RR} 23... Rxd7
24. Qc5+ Kd8 25. Be7+ Ke8 26. Qc8+) ({RR} 23... Nxd7 24. Qc3+) 24. Qe7+ Kc6 {
Bacrot,E (2713)-Morozevich,A (2770) Biel 2012 CBM 150 [Krasenkow,M] 1-0}) 10...
Qg5 11. Ne2 $1 Nf6 $146 {Mistake. Ne7 was best.} (11... Ne7 12. Ng3) (11... Ne7
$11) ({RR} 11... Ne7 12. Rg1 Qa5+ 13. Kf1 e5 14. Bxe7 Bh3+ 15. Bg2 Bxg2+ 16.
Rxg2 Kxe7 17. Rxg7 Rag8 18. Rxg8 Rxg8 19. Qd3 Rg6 20. Rd1 Nc5 21. Qh3 Ne6 22.
Qxh7 Qa4 23. Qh4+ f6 24. Nc3 Qc2 25. Qh7+ Ng7 26. Qg8 {Arbakov,V (2445)
-Nikitin,A (2471) Alushta 2002 0-1 (56)}) ({RR} 11... Ne7 12. Ng3 e5 13. Qb3
O-O 14. h4 Qf6 15. Ne4 Qe6 16. O-O-O Re8 17. Rhg1 Nf5 18. Bh5 Nd4 19. Qd3 g6
20. f4 c5 21. fxe5 Nb4 22. Qf1 Qf5 23. Rxd4 cxd4 24. Nf6+ Kh8 25. Bxb4 Rxe5 26.
Bd1 {Abdusattorov,N (2716)-Erigaisi,A (2712) Doha QAT 2023 1-0 (49)}) ({RR} 
11... Ne7 12. Rg1 Qa5+ 13. Nc3 Nf5 14. Ba3 e5 15. Be4 Nc5 16. Bxf5 Bxf5 17. Qd6
Nd3+ 18. Kf1 Qd8 19. b3 Qh4 20. Rg3 Rd8 21. Qc7 Rd7 22. Qb8+ Qd8 23. Qxa7 f6
24. Qe3 Nf4 25. Re1 g5 26. Rxg5 {Verhoef,H (1869)-Laengl,J (2211) Seefeld 2000
0-1 (41)}) ({RR} 11... Ne7 12. Ng3 Qa5+ 13. Ke2 e5 14. b4 Qd8 15. b5 Be6 16.
Rc1 Qb6 17. bxa6 Qxa6 18. Qd3 Ng6 19. Nh5 O-O-O 20. c5 Qa4 21. Be4 Bg4+ 22. f3
Rxd6 23. cxd6 Bxh5 24. Kf2 Nf4 25. Qd2 Bg6 26. d7+ {Gandrud,V (2242)-Nezad,H 
(2373) Caleta 2014 0-1 (31)}) 12. Rg1 $16 Qa5+ 13. b4 $6 {Inaccuracy. Nc3 was
best.} (13. Nc3 $1 Qf5) ({White must play} 13. Nc3 $1 $16) 13... Nxb4 $11 14.
Kf1 e5 15. Qd2 $6 {Inaccuracy. Qb1 was best.} (15. Qb1) ({White should play} 
15. Qb1 $14) 15... Bh3+ 16. Bg2 $132 {[%mdl 2048] White is not holding back}
Bxg2+ 17. Rxg2 c5 {White must now prevent ...0-0-0.} 18. Bxe5 Qa6 $4 {Blunder.
Qd8 was best.} (18... Qd8 $1 19. Qg5) (18... Qd8 $1 $11 19. Qb2 a6) 19. Rxg7
$18 Qe6 (19... Ne4 $142 20. Qf4 Qxc4) 20. Re1 Ne4 ({Not} 20... Qxe5 $2 21. Nc3
$18) 21. Qf4 Nd3 $6 {Inaccuracy. f5 was best.} (21... f5 22. Rd1) 22. Qxe4 {
[%mdl 64] And now Nf4 would win. Double Attack} Nxe1 23. Kxe1 {Nf4 is the
strong threat.} O-O-O 24. Nf4 $1 {[%cal Rf4e6]} Qd7 {[%csl Gd8][%cal Rd7d1]}
25. Nd5 Rhe8 26. Kf1 $6 {Inaccuracy. f4 was best.} (26. f4 Re6 27. Rxh7 Rde8
28. Qe3 Kd8 29. Qxc5 b6 30. Qd4 Rd6 31. Rg7 Qf5 32. Kd2) 26... Qh3+ 27. Kg1 Re6
$4 {Blunder. Qh5 was best.} (27... Qh5) (27... Rd7 $142) 28. f4 $6 {Inaccuracy.
Qf4 was best.} (28. Qf4 Qd3 29. h3 Rg6+ 30. Rxg6 Qxg6+ 31. Kh2 Qe6 32. Bb8 {
[%csl Gb8,Gd5][%cal Rf4c7]} Rd7 33. Nf6 b6 34. Nxd7 Qxd7) (28. Qf4 $142 Rb6 29.
Nxb6+ axb6 30. f3) 28... Qh5 (28... Rde8 {was necessary.} 29. Qxh7 Qxh7 30.
Rxh7 Rf8) 29. Kg2 $4 {Blunder. f5 was best.} (29. f5 Ree8 30. Kg2 Rd6 31. h4
Rd7 32. Qe3 b6 33. Qe4 $1 Rxe5 34. Qxe5 Qxh4 35. Qe8+ Rd8) (29. f5 $18 Ree8 30.
Kg2) 29... Rg6+ $16 30. Rxg6 Qxg6+ 31. Kf3 {Threatens to win with Ne7+.} Qh5+
32. Ke3 Qh3+ 33. Qf3 $2 {Mistake. Kd2 was best.} (33. Kd2 $1 Qxh2+ 34. Kc1 Qg1+
35. Kb2 Qh2+ 36. Kb3 Qh3+ {[#]} 37. Bc3 $1 Qe6 {[#]} 38. Ne7+ $1 Kb8 39. Be5+
Ka8) (33. Kd2 $1 $16) 33... Qe6 $4 {Blunder. Qxf3+ was best.} (33... Qxf3+) (
33... Qxf3+ $11 34. Kxf3 b5) 34. Kf2 $18 Qa6 35. Qg4+ $6 {Inaccuracy. Qh3+ was
best.} (35. Qh3+ Qe6 36. Qa3 Rxd5 37. cxd5 Qxd5 38. Qh3+ Kd8 39. Qxh7 Qd2+ 40.
Kg3 Qe1+ 41. Kh3 Qe3+) 35... Qe6 36. Qh5 h6 $6 {Inaccuracy. b5 was best.} (
36... b5 37. Qxh7) 37. a4 Rg8 38. Qf3 Re8 $6 {Inaccuracy. Rg6 was best.} (38...
Rg6 39. f5 Qxe5 40. fxg6 fxg6 41. Qh3+ Kb8 42. Qxh6 Qd4+ 43. Ne3 b6 44. Kf3 Qa1
45. Qxg6) 39. Nc7 {[%mdl 64] Double Attack. Accuracy: White = 56%, Black = 45%.
Precisão Chessbase:Brancas 56% Pretas 45%. Precisão Lichess.org:Brancas 90%
Pretas 86%. Precisão Chess.com:Brancas 84.4% Pretas 79.2%.} 1-0

[Event "Scherer Chess Master 2024"]
[Site "Joaçaba-SC"]
[Date "2024.05.05"]
[Round "4.1"]
[White "Do Valle Cardoso, Lucas"]
[Black "Di Berardino, Diego Rafael"]
[Result "1/2-1/2"]
[ECO "C10"]
[WhiteElo "2367"]
[BlackElo "2484"]
[Annotator "Stockfish 16.1"]
[PlyCount "76"]
[EventDate "2024.??.??"]
[EventCountry "BRA"]

{[%evp 9,76,55,53,60,61,61,64,66,61,54,63,58,61,48,42,42,45,42,38,0,-2,-119,
-111,-106,-101,-156,-155,-155,-152,-151,-150,-151,-150,-157,-152,-286,-280,
-354,-354,-354,-362,-334,-336,-399,-289,-291,-147,-158,-35,-28,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e6 2. d4 d5 3. Nc3 a6 4. Nf3 Bb4 ({RR} 4... dxe4
5. Nxe4 Nf6 6. Bd3 Bd7 7. Nxf6+ gxf6 8. Bf4 c5 9. Qe2 cxd4 10. Nxd4 Nc6 11.
Nxc6 Bxc6 12. O-O-O Qa5 13. Bc4 Be7 14. Rhe1 Bd7 15. Qf3 O-O-O 16. Kb1 Bc6 17.
Qb3 Rxd1+ 18. Rxd1 Rd8 19. Rxd8+ {Golubev,M (2461)-Martin Barcelo,C (2222)
chess.com INT 2024 0-1 (59)}) 5. e5 ({RR} 5. exd5 exd5 6. Bd3 Bg4 7. O-O Ne7 8.
Bf4 Nbc6 9. h3 Bh5 10. g4 Bg6 11. Ne5 Bxc3 12. bxc3 Bxd3 13. Qxd3 Na5 14. Bg3
f6 15. Nf3 O-O 16. Nh4 Nc4 17. Rae1 Qd7 18. Re2 Rf7 19. Rfe1 Raf8 {Xu,X (2623)
-Nakamura,H (2778) chess.com INT 2023 0-1 (53)}) 5... Bd7 6. a3 $146 ({RR} 6.
Bd2 Bxc3 7. Bxc3 Bb5 8. Bd3 Bxd3 9. Qxd3 Nd7 10. h4 Ne7 11. h5 h6 12. g4 Rc8
13. O-O-O c5 14. Kb1 Qb6 15. Nh4 Qb5 16. Qg3 cxd4 17. Bxd4 Nc6 18. f4 Nxd4 19.
Rxd4 Qe2 20. Rc1 Nc5 {Wagner,D (2589)-Maksimovic,B (2497) chess.com INT 2023
0-1}) ({RR} 6. Bd3 Bb5 7. O-O Bxd3 8. Qxd3 c5 9. a3 cxd4 10. Nxd4 Bc5 11. Nb3
Ba7 12. Qg3 Kf8 13. Bg5 Ne7 14. Rad1 Nbc6 15. Rfe1 h6 16. Bxe7+ Nxe7 17. Kh1
Rc8 18. f4 g6 19. Qd3 h5 20. Ne2 Nf5 {Llari,M (2092)-Lobkin,B (1795)
Dusseldorf GER 2023 0-1 (74)}) ({RR} 6. Bd3 Bb5 7. O-O Bxd3 8. Qxd3 c5 9. Ne2
cxd4 10. Nexd4 Bc5 11. Nb3 Ba7 12. c4 Ne7 13. Bg5 Nbc6 14. Rad1 h6 15. Bh4 Qc7
16. Bxe7 Qxe7 17. cxd5 Nb4 18. d6 Nxd3 19. dxe7 Nf4 20. Na5 Kxe7 {Kovalenko,I 
(2668)-Bernadskiy,V (2599) Sousse TUN 2021 1/2-1/2}) 6... Bxc3+ 7. bxc3 Bb5 8.
Bd3 {White is slightly better.} Bxd3 9. cxd3 Nc6 10. a4 b6 11. h4 Nge7 12. h5
h6 13. Nh4 Qd7 14. Rh3 O-O-O 15. Rf3 $2 {[#] Mistake. Kf1 was best.} (15. Kf1
Kb7) (15. Rb1 $11) 15... g5 $1 $17 16. hxg6 fxg6 {Hoping for ...g5.} 17. Rf7 {
And now Nxg6! would win.} Qe8 $36 {[%mdl 2048] White is under strong pressure.}
18. Rf6 g5 19. Nf3 Ng8 20. Ba3 Nxf6 21. exf6 e5 22. Qe2 $2 {Mistake. Kf1 was
best.} (22. Kf1 e4) (22. Kf1 $17) 22... exd4 $19 23. Nxd4 $6 {Inaccuracy. cxd4
was best.} (23. cxd4 Qf7 24. Be7 Nxe7 25. fxe7 Rd6 26. a5 Re8 27. Ne5 Qxe7 28.
Rc1 Kb7 29. Kf1 b5) 23... Nxd4 {[%mdl 64] Discovered Attack} 24. cxd4 Qc6 ({
Much less strong is} 24... Qxa4 25. Qb2 $19) 25. Rc1 Qxf6 26. Be7 Qxd4 $6 {
Inaccuracy. Qf4 was best.} (26... Qf4 27. Qe6+ Kb8 28. Rc6 Rhe8 29. Kf1 Qxd4
30. g4 Qxa4 31. Rxb6+ cxb6 32. Qxb6+ Kc8 33. Bxd8) 27. Bxd8 Rxd8 $6 {[%mdl
4096] Endgame Inaccuracy. Qb4+ was best. KQR-KQR} (27... Qb4+ 28. Kf1 Rxd8 29.
a5 Kb7 30. axb6 cxb6 31. Qe5 Qd6 32. Qg7+ Rd7 33. Qg8 Re7 34. Qc8+) ({Don't
take} 27... Kxd8 28. Qf3 $19) (27... Qb4+ $19 28. Kf1 Rxd8) 28. Qe7 $17 {
[%csl Gc1][%cal Re7c7]} c5 $6 {Inaccuracy. Rd7 was best.} (28... Rd7 29. Qe8+
Rd8 30. Qe7 {[%csl Gc1][%cal Re7c7] [#]} Qf4 $1 31. Rc6 a5 32. Kf1 Qh2 33. g3 {
[%csl Gc6][%cal Re7c7]} Qh3+ 34. Ke1 {[%csl Gc6][%cal Re7c7]} Qd7 35. Qxd7+) (
28... Rd7 $17 29. Qe8+ Rd8) 29. a5 $1 $15 Qxd3 $6 {Inaccuracy. Qb2 was best.
White must now prevent ... Qb5.} (29... Qb2 30. Rd1 $1 Qb5 31. Kf1 Rd7 32. Qe8+
Kb7 33. axb6 Qa4 34. Qe2 (34. Re1 $11 {keeps the balance.}) 34... g4 (34... Rf7
$17 35. Kg1 g4) 35. Kg1 h5 36. Re1) (29... Qb2 $5 {[%cal Rb2c1]} 30. Rd1 Qb5
$17) 30. Qe6+ {The position is equal.} Rd7 31. Qe8+ Kc7 32. axb6+ Kd6 {
Threatens to win with ...Re7+.} 33. Qb8+ Ke7 {...Kf7 is the strong threat.} 34.
Rxc5 Qe4+ 35. Kf1 {aiming for Rc1.} Qb1+ 36. Ke2 Qe4+ 37. Kf1 {Strongly
threatening Rc1.} Qb1+ 38. Ke2 Qe4+ {Precisão Chessbase: Brancas 73% Pretas
79%. Precisão Lichess.org: Brancas 94% Pretas 93%. Precisão Chess.com:
Brancas 91.8% Pretas 91.8%.} 1/2-1/2

[Event "Scherer Chess Master 2024"]
[Site "Joaçaba-SC"]
[Date "2024.05.05"]
[Round "4.2"]
[White "Flores Quillas, Diego Saul Rodri"]
[Black "Quintiliano, Renato R."]
[Result "0-1"]
[ECO "B90"]
[WhiteElo "2431"]
[BlackElo "2487"]
[Annotator "Stockfish 16.1"]
[PlyCount "74"]
[EventDate "2024.??.??"]
[EventCountry "BRA"]

{[%evp 11,73,37,61,39,58,57,75,40,42,42,42,55,51,45,46,64,51,53,57,0,0,-28,142,
136,139,130,219,212,217,211,216,186,196,184,190,185,186,189,216,169,173,152,
152,116,208,123,125,131,139,141,168,167,152,104,105,11,12,11,81,9,16,-29994,
-29995,-29999]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h3 Nc6
7. g4 g6 8. Be3 ({RR} 8. Bg2 Nxd4 9. Qxd4 Bg7 10. Be3 O-O 11. Qd2 Be6 12. O-O
Bc4 13. Rfe1 a5 14. a4 Rc8 15. Bd4 Nd7 16. Bxg7 Kxg7 17. f4 Qb6+ 18. Kh1 Qb4
19. e5 Ba6 20. Rab1 dxe5 21. fxe5 Nc5 22. Qf2 Bc4 {Flores Quillas,D (2359)-Yu
Jiangwei (2167) Milpitas USA 2023 1/2-1/2 (67)}) 8... Nxd4 9. Qxd4 {White is
better.} Bg7 $1 10. O-O-O b5 $146 ({RR} 10... O-O 11. e5 Nd7 12. f4 dxe5 13.
Qb4 b5 14. Nd5 e6 15. Nb6 Rb8 16. Nxc8 Qxc8 17. f5 Nb6 18. Bxb6 Rxb6 19. Bd3 a5
20. Qe4 a4 21. a3 b4 22. axb4 a3 23. Qc4 axb2+ 24. Kxb2 e4+ {0-1 (24)
Filgueiras,N (2323)-Fier,A (2604) chess.com INT 2023}) ({RR} 10... Be6 11. f4
Qa5 12. f5 Bxa2 13. Bd2 O-O 14. Nd5 Nxd5 15. Bxa5 Bxd4 16. Rxd4 Ne3 17. Kd2
Nxf1+ 18. Rxf1 Rfc8 19. b3 Rc6 20. Ra1 Bxb3 21. cxb3 Rac8 22. Ke3 Rc2 23. f6
exf6 24. Rxd6 Rh2 25. Rxf6 {Karjakin,S (2757)-Shankland,S (2709) Krasnaya
Polyana RUS 2021 1-0 (40)}) ({RR} 10... O-O 11. Qd2 Be6 12. Kb1 Rc8 13. f3 Nd7
14. Bd4 Bxd4 15. Qxd4 Qa5 16. Nd5 Bxd5 17. Qxd5 Qxd5 18. Rxd5 Rc5 19. Rxc5 Nxc5
20. Bc4 Kg7 21. Re1 Rd8 22. b4 Nd7 23. f4 h6 24. Rd1 g5 25. f5 {Filgueiras,N 
(2323)-Fier,A (2604) Caioba BRA 2023 0-1 (49)}) 11. g5 Nh5 12. Qd2 Bb7 13. Nd5
$36 {[%mdl 2048] White has some pressure.} O-O 14. Be2 e6 15. Nb6 (15. Bb6 $14
Qd7 16. Bg4) 15... Bxe4 $11 16. f3 {[#]} (16. Rhe1 {is interesting.} d5 17.
Nxa8 Qxa8 18. Bd3 Bf3 19. Be2) 16... Bb7 $2 {Mistake. Bd5 was best.} (16... Bd5
17. Nxd5 exd5 18. f4 Ng3 19. Rhe1 Nxe2+ 20. Rxe2 Qd7 21. Qxd5 Qxh3 22. Bd2 Rae8
23. Rxe8) (16... Bd5 $1 $11 {[%mdl 512]}) 17. Nxa8 $16 Qxa8 18. Qxd6 Bxf3 $6 {
Inaccuracy. Bd5 was best.} (18... Bd5 19. Kb1 Rc8 20. Rd2 Bf8 21. Qh2 $1 Qc6
22. Rc1 Bd6 23. f4 Ng7 24. Bg4 Bb4 25. Rdd1) (18... Bd5 $16) 19. Bxf3 $18 Qxf3
20. Rhe1 Ng3 21. Qd3 Qc6 22. Bd4 Nf5 ({Much worse is} 22... Bxd4 $6 23. Qxg3 (
23. Qxd4 Nf5 $16) 23... Rc8 24. Re2 $16) 23. Bxg7 Kxg7 24. Qe4 Rc8 25. Qe5+ Kg8
{[%csl Gc8][%cal Rc6c2]} 26. Re2 Ne7 27. h4 Nd5 28. Rh2 ({White should try} 28.
Red2 $18) 28... Qc4 {[#]} 29. Kb1 $1 a5 30. Rc1 Rc5 31. Qd6 Rc8 32. h5 gxh5 33.
Rxh5 $6 {Inaccuracy. Qd7 was best.} (33. Qd7 Qc7) (33. Qd7 $16) 33... Nb4 $1
$11 {[%csl Gb4][%cal Rc4a2]} 34. b3 Qc3 {[%cal Rb4c2]} 35. g6 (35. Rh2 $16)
35... hxg6 {[#]} 36. Rxb5 $4 {Checkmate is now unavoidable. Qe5 was best.} (36.
Qe5) (36. Qe5 $1 $11 {[%mdl 512]} Qxe5 37. Rxe5) 36... Nxc2 {[%csl Gc2][%cal
Rc3a1]} 37. Rb8 Qa1# {Precisão Chessbase: Brancas 54% Pretas 80%. Precisão
Lichess.org: Brancas 79% Pretas 94%. Precisão Chess.com: Brancas 86.0% Pretas
92.4%.} 0-1

[Event "Scherer Chess Master 2024"]
[Site "Joaçaba-SC"]
[Date "2024.05.05"]
[Round "4.3"]
[White "Librelato, Kathie Goulart"]
[Black "Cubas, Jose Fernando"]
[Result "0-1"]
[ECO "B76"]
[WhiteElo "2165"]
[BlackElo "2419"]
[Annotator "Stockfish 16.1"]
[PlyCount "74"]
[EventDate "2024.??.??"]
[EventCountry "BRA"]

{[%evp 18,74,51,19,83,50,53,52,55,49,47,48,45,34,45,-23,-23,-20,-28,-19,-17,
-52,-7,-76,-76,-179,-180,-301,-328,-312,-303,-314,-341,-361,-166,-175,-162,
-165,-169,-191,-202,-155,-119,-196,-204,-238,-241,-303,-297,-437,-426,-442,
-421,-463,-454,-463,-463,-444,-454]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6
5. Nc3 g6 6. Be3 Bg7 7. f3 Nc6 8. Qd2 O-O 9. O-O-O d5 10. Kb1 Qd7 (10... Nxd4
$11 {remains equal.} 11. e5 (11. Bxd4 dxe4 12. fxe4 e5 $11) 11... Nf5 12. exf6
exf6) 11. g4 (11. Nxc6 {feels hotter.} bxc6 12. exd5 Rb8 13. Bc4 Nxd5 14. Bxd5
cxd5 15. Bh6) 11... dxe4 {Threatens to win with ...Nxd4.} 12. Nxc6 bxc6 {
White is slightly better.} 13. Qxd7 (13. Qd3 $2 {[%mdl 8192] 13.Qxd7 0.51} Qd6
$2 (13... exd3 $19 14. Rxd3 Nd5 15. Nxd5 cxd5) 14. Qxd6 Nd7 $2 {[%mdl 8192]} (
14... exd6 $15 {keeps the upper hand.} 15. g5 Nd5 16. Nxd5 cxd5)) 13... Nxd7
14. Nxe4 Nb6 $146 ({RR} 14... Ne5 15. Be2 Be6 16. b3 Rfb8 17. Kc1 a5 18. a4
Bxb3 19. cxb3 Rxb3 20. Bd4 Rab8 21. Kc2 Nxf3 22. Bxg7 Kxg7 23. Bxf3 Rxf3 24.
Rhf1 Rxf1 25. Rxf1 Rb4 26. Nc3 Rxg4 27. Re1 e6 28. Re5 Rg2+ 29. Kb3 {Daggupati,
B (2331)-Yanayt,E (2173) Chesterfield MO USA 2020 1/2-1/2 (46)}) ({RR} 14...
Ne5 15. Be2 Be6 16. b3 Rfb8 17. Kc1 a5 18. a4 Bxb3 19. cxb3 Rxb3 20. Bd4 Rab8
21. Kc2 Nxf3 22. Bxg7 Kxg7 23. Bxf3 Rxf3 24. Rhf1 Rxf1 25. Rxf1 Rb4 26. Nc3
Rxg4 27. Re1 e6 28. Re5 Rg2+ 29. Kb3 {Daggupati,B (2331)-Yanayt,E (2173)
Chesterfield MO USA 2020 1/2-1/2 (46)}) 15. Nc5 Nd5 16. Bd4 $6 {Inaccuracy.
Bc1 was best.} (16. Bc1 Rb8 17. Rd3 Be5 18. h3 f5 19. Nb3 Bg7 20. Na5 Ba6 21.
Rxd5 Bxf1 22. Rd2 Bb5) (16. Bc1 $14) 16... e5 $11 17. Bf2 Rb8 {Hoping for ...
Nc3+.} 18. Nb3 $1 a5 $36 {[%mdl 2048] White must now prevent ...a4. White is
under pressure.} 19. a4 Be6 (19... e4 $5) 20. Re1 (20. Bd3 $11 {keeps the
balance.}) 20... Rfd8 $17 21. Bg3 $6 {[#] Inaccuracy. Bh4 was best.} (21. Bh4
Rd7) (21. Bh4 $17 Rd6 22. Nxa5) 21... Nb4 $1 $19 {[%cal Rb4c2] ...Nxc2! is the
strong threat.} 22. Nc5 $2 {Mistake. c4 was best.} (22. c4 Nd3 23. Bxd3 Rxb3
24. Bc2 Rxf3 25. Bxe5 Bxg4 26. Bc7 Rc8 27. Bxa5 Rb8 28. b3 Bf5) (22. c4 $142)
22... Ba2+ 23. Ka1 Bd5 24. Bd3 Bxf3 25. Rhf1 {[#]} Rxd3 $1 {[%mdl 512]
Inaccuracy. e4 was best.} 26. cxd3 Nc2+ {[%mdl 64] Double Attack} 27. Kb1 Nxe1
28. Rxe1 Bxg4 29. Bxe5 Rd8 30. Bxg7 $6 {Inaccuracy. b4 was best.} (30. b4) (30.
b4 $17 {was worth a try.}) 30... Kxg7 $17 {[%mdl 4096] Endgame KRB-KRN} 31. Kc2
Rd5 32. Nb7 $6 {Inaccuracy. Nb3 was best.} (32. Nb3 h5 33. Kc3 h4 34. Kc4 Rg5
35. Kc3 Bc8 36. Re8 Be6 37. Nd4 Bd5 38. b4 axb4+) 32... Bf5 33. Re3 $2 {
Mistake. Kc3 was best.} (33. Kc3 Rxd3+ 34. Kc4 Rd2 35. Nxa5 Rxb2 36. Ra1 Rc2+
37. Kb3 c5 38. Nb7 c4+ 39. Ka3 Rxh2) (33. Re7 {was called for.}) 33... Kf8 $19
{Black is clearly winning.} 34. b4 axb4 35. a5 Bc8 36. a6 Bxb7 37. axb7 Rb5 {
Precisão Chessbase: Brancas 44% Pretas 79%. Precisão Lichess.org: Brancas
89% Pretas 96%. Precisão Chess.com: Brancas 86.8% Pretas 94.4%..} 0-1

[Event "Scherer Chess Master 2024"]
[Site "Joaçaba-SC"]
[Date "2024.05.05"]
[Round "4.4"]
[White "Perdomo, Leandro"]
[Black "Fier, Alexandr"]
[Result "1/2-1/2"]
[ECO "A61"]
[WhiteElo "2378"]
[BlackElo "2574"]
[Annotator "Stockfish 16.1"]
[PlyCount "95"]
[EventDate "2024.??.??"]
[EventCountry "BRA"]

{[%evp 13,95,65,67,58,54,42,89,87,87,75,93,89,88,86,89,92,101,94,101,53,58,37,
35,51,62,35,62,18,56,56,68,64,138,126,163,153,151,0,0,0,0,-15,46,-25,-27,-31,
-18,-31,-6,-41,0,0,0,0,0,0,173,0,0,0,19,27,22,38,38,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nc3 c5 4. d5 exd5 5. cxd5 d6 6. Nf3 g6 7.
Bf4 Bg7 8. e3 O-O 9. h3 Na6 10. Bxa6 {White is better.} bxa6 11. Rc1 Rb8 12. b3
Re8 13. O-O a5 14. Re1 Nh5 15. Bh2 f5 16. Nd2 Ba6 17. Nc4 Bxc4 $1 18. bxc4 a6
$146 ({RR} 18... Qd7 19. Nb5 Be5 20. Bxe5 Rxe5 21. Rb1 Rf8 22. Nc3 Qe7 23. g3
Re8 24. Kf1 f4 25. gxf4 Nxf4 26. exf4 {1/2-1/2 (26) Cheng,B (2559)-Visakh,N 
(2542) Chartres FRA 2023}) 19. a3 Re7 20. g4 Bxc3 21. Rxc3 Nf6 $1 22. f3 Qd7 $6
{Inaccuracy. a4 was best.} (22... a4 23. Rc2) ({Better is} 22... a4 $14) 23.
Rb3 $16 Rf8 24. Rb6 Ne8 25. g5 $2 {Mistake. e4 was best.} (25. e4 Qd8 26. Rb2
fxe4 27. fxe4 Ref7 28. Kg2 a4 29. Bg3 Rf3 30. Rf2 Rxa3 31. Rxf8+ Kxf8) ({
White should try} 25. e4 $1 $16) 25... f4 $1 $11 26. exf4 Ng7 27. Re4 Nf5 (
27... Rfe8 $11) 28. Qe1 (28. Kf2 $14) 28... Rfe8 29. Kg2 (29. Qxa5 $2 Nd4 $19)
29... Nd4 30. Rxe7 ({Don't blunder} 30. Qxa5 $2 Nxf3 $1 {[%mdl 512]} 31. Re6 (
31. Rxe7 Qxe7 32. Bg3 Qe4 $19) 31... Rxe6 $19) 30... Rxe7 31. Rb8+ (31. Qxa5
Re2+ 32. Kg1 Nxf3+ 33. Kf1 Rxh2 34. Rb8+ Kf7 35. f5 Qe7 36. Qc7 Qxc7 37. fxg6+
Kxg6 38. Rg8+ Kh5 39. Rh8 Qg7 40. Rxh7+ Qxh7 41. g6 Qxg6 42. a4 Qg2#) 31... Kf7
(31... Kg7 $5 {[%cal Re7e1]} 32. Qxa5 Re2+ 33. Kh1 Kf7 $11) 32. Qh4 {[%cal
Rh4h7]} h5 {...Re2+ is the strong threat.} 33. gxh6 Nf5 34. Qg5 Re8 $4 {
[#] Blunder. Ne3+ was best.} (34... Ne3+ 35. Kg3 Nf5+ 36. Kg2 $1) (34... Ne3+
$11 {and Black has nothing to worry.} 35. Kg3 Nf5+ 36. Kg2 Ne3+ 37. Kg3 Nf5+
38. Kg2) 35. Rxe8 $4 {Blunder. Rb2 was best.} (35. Rb2 $1) (35. Rb2 $1 $18)
35... Qxe8 36. Bg1 Qh8 37. Bf2 a4 38. h4 Qxh6 39. Qd8 Qxf4 {The position is
equal.} 40. Qd7+ Kf6 41. Qxa4 Qd2 {And now ...Nxh4+ would win.} 42. Qd7 Nxh4+
43. Kh3 $1 Qxf2 44. Qxd6+ Kg7 45. Qe7+ Kg8 46. Qe8+ Kg7 {Hoping for ...Nf5.}
47. Qe7+ Kg8 48. Qe8+ {Precisão Chessbase: Brancas 79% Pretas 75%. Precisão
Lichess.org: Brancas 94% Pretas 93%. Precisão Chess.com: Brancas 94.3% Pretas
94.9%.} 1/2-1/2

[Event "Scherer Chess Master 2024"]
[Site "Joaçaba-SC"]
[Date "2024.05.05"]
[Round "4.5"]
[White "Delgado Ramirez, Neuris"]
[Black "Bachmann, Axel"]
[Result "1-0"]
[ECO "B40"]
[WhiteElo "2483"]
[BlackElo "2578"]
[Annotator "Stockfish 16.1"]
[PlyCount "59"]
[EventDate "2024.??.??"]
[EventCountry "BRA"]

{[%evp 13,59,24,21,16,30,17,17,24,72,77,80,53,85,77,193,202,183,180,184,193,
179,185,302,308,301,304,309,313,292,301,292,289,351,332,377,377,354,361,375,
355,355,354,361,365,376,369,374,377]} 1. e4 {[%eval 14,0]} c5 {[%eval 34,0]} 2.
Nf3 {[%eval 25,0]} e6 {[%eval 39,0]} 3. c3 {[%eval 18,0]} d5 {[%eval 17,0]} 4.
exd5 {[%eval 21,0]} Qxd5 {[%eval 25,0]} (4... Qd7 5. d6 Qxd6 6. Na3 Qd5 7. d3
Nf6 8. d4) 5. Na3 {[%eval 17,0][%cal Bb1a3,Ba3c4,Bc4e3][%mdl 32]} Nf6 {[%eval
25,0]} 6. d4 {[%eval 18,0]} a6 {[%eval 37,0]} 7. Nc4 {[%eval 3,0]} Nbd7 {
[%eval 31,0]} 8. Be2 {[%eval 28,0]} b5 {[%eval 25,0]} 9. Ne3 {[%eval 18,0]} Qc6
{[%eval 14,0]} 10. a4 {[%eval 16,0] Strongly threatening axb5.The position is
equal.} ({RR} 10. O-O Bb7 11. a4 b4 12. Ne5 Nxe5 13. dxe5 Rd8 14. Qb3 Nd7 15.
Bf3 Qc7 16. Bxb7 Qxb7 17. Nc4 Nb6 18. Bg5 Be7 19. Bxe7 Kxe7 20. Na5 Qc7 21.
cxb4 Nd5 22. Rac1 Rb8 23. Qg3 Rxb4 24. Qxg7 Rbb8 {Mamedyarov,S (2770)-Vachier
Lagrave,M (2760) chess24.com INT 2021 1-0 (40)}) 10... Rb8 $6 {[%eval 82,0]
Inaccuracy. Bb7 was best.} (10... Bb7 11. dxc5 Qxc5 12. axb5 axb5 13. Rxa8+
Bxa8 14. Nd4 b4 $1 15. Qa4 Qc8 16. O-O bxc3 17. bxc3) ({RR} 10... Bb7 11. Ne5
Nxe5 12. dxe5 Rd8 13. Qc2 Nd5 14. axb5 axb5 15. Nxd5 Rxd5 16. f4 c4 17. Bf3 Bc5
18. Qe2 Qb6 19. Bxd5 Bxd5 20. h4 O-O 21. Rh3 f6 22. Be3 fxe5 23. fxe5 Be4 24.
O-O-O Bd3 25. Bxc5 {Dere,P (2191)-Daaevik Wadhawan (1997) Bhubaneswar IND 2024
0-1 (72)}) 11. axb5 {[%eval 68,0]} axb5 {[%eval 63,0]} 12. dxc5 $146 {[%eval
51,0]} ({RR} 12. O-O Be7 13. dxc5 Qxc5 14. Nd4 O-O 15. Ra5 Qc7 16. Rxb5 Ra8 17.
Bf3 Ra6 18. Re1 Nc5 19. Qe2 Rd8 20. Nec2 Bd6 21. Nb4 Ra4 22. b3 Ra1 23. Qb2
Rxc1 24. Qxc1 e5 25. Ndc6 e4 26. Be2 Re8 {Alsina Leal,D (2480)-Martinez
Alcantara,J (2561) Linares ESP 2018 1/2-1/2 (56)}) ({RR} 12. O-O Bd6 13. dxc5
Qxc5 14. Qd4 O-O 15. Rd1 Rb6 16. Qxc5 Nxc5 17. Nd4 Bd7 18. Ra5 Nb7 19. Ra2 Rc8
20. Bd2 e5 21. Ndf5 Bf8 22. Be1 Be6 23. Ra7 g6 24. Ng3 Nd6 25. Ngf1 Nc4 26. b4
Nd6 {Yu Yangyi (2729)-Predke,A (2684) chess.com INT 2023 1-0 (44)}) 12... Qxc5
{[%eval 9,0]} 13. O-O {[%eval 68,0]} b4 $6 {[%eval 193,15] [#] Inaccuracy. Be7
was best.} (13... Be7 14. Nd4 O-O 15. Ra5 Ne5 16. Rxb5 Rxb5 17. Nxb5 Rd8 18.
Qa4 Bd7 19. Qd4 Bxb5 20. Qxc5) (13... Be7 $16 {[%eval 77,16]}) 14. cxb4 $1 $18
{[%eval 192,0]} Qxb4 {[%eval 185,0]} 15. Nd4 {[%eval 182,0]} Bb7 {[%eval 234,0]
} 16. Nb5 {[%eval 233,0]} Be7 {[%eval 211,0] [#]} 17. b3 $1 {[%eval 185,0]} Qh4
$6 {[%eval 302,16] Inaccuracy. h5 was best.} (17... h5) (17... Kf8 $142 {
[%eval 185,19]} 18. Ra7 Qe4) 18. Ra4 {[%eval 323,0]} Qg5 {[%eval 316,0]} 19.
Nd5 {[%eval 322,0]} Qg6 {[%eval 314,0]} 20. Bd3 {[%eval 314,0]} Nxd5 {[%eval
319,0]} 21. Bxg6 {[%eval 326,0]} hxg6 {[%eval 305,0]} 22. Ba3 {[%eval 285,0]}
Bc6 {[%eval 357,0]} 23. Nd6+ {[%eval 348,0]} Bxd6 {[%eval 356,0]} 24. Bxd6 {
[%eval 361,0] White is winning.} Bxa4 {[%eval 358,0]} 25. Bxb8 {[%eval 306,0]
Hoping for Bd6.} ({Resist} 25. bxa4 Rc8 $18) 25... Bb5 {[%eval 364,0]} 26. Re1
{[%eval 356,0] Threatens to win with Qxd5.} O-O {[%eval 362,0]} 27. Bd6 {
[%eval 351,0]} Rc8 {[%eval 306,0]} 28. Qa1 {[%eval 363,0]} Rc3 {[%eval 367,0]}
29. Qa8+ {[%eval 307,0]} Kh7 {[%eval 367,0]} 30. Qe8 {[%eval 375,0] Precisão
Chessbase: Brancas 96% Pretas 67%. Precisão Lichess.org: Brancas 98% Pretas
92%. Precisão Chess.com: Brancas 97.2% Pretas 88.7%.} 1-0

[Event "Scherer Chess Master 2024"]
[Site "Joaçaba-SC"]
[Date "2024.05.06"]
[Round "5.1"]
[White "Bachmann, Axel"]
[Black "Do Valle Cardoso, Lucas"]
[Result "1-0"]
[ECO "A13"]
[WhiteElo "2578"]
[BlackElo "2367"]
[Annotator "Stockfish 16.1"]
[PlyCount "55"]
[EventDate "2024.??.??"]
[EventCountry "BRA"]

{[%evp 18,55,25,28,18,16,24,-11,24,16,46,42,35,0,29,21,46,15,69,73,106,112,116,
33,378,382,382,387,445,441,427,445,455,450,453,450,448,449,573,577]} 1. Nf3 d5
2. e3 Nf6 3. c4 e6 4. b3 c5 5. Bb2 Nc6 6. cxd5 exd5 7. Be2 Bd6 8. O-O O-O 9. d4
cxd4 10. Nxd4 Re8 ({RR} 10... Ne4 11. Nf3 Bg4 12. Nc3 Nf6 13. Nb5 Bb8 14. Rc1
a6 15. Nbd4 Qd6 16. g3 Bh3 17. Re1 Re8 18. Nxc6 bxc6 19. Qc2 Bd7 20. Bd4 Bc7
21. Red1 Ne4 22. Bd3 Bg4 23. Be2 Bd7 24. Kg2 Qh6 25. Ng1 {Buenafe Moya,J (2197)
-Mendez Fortes,E (2231) chess.com INT 2024 0-1 (34)}) 11. Nd2 a6 ({RR} 11...
Bc7 12. Rc1 Qd6 13. N2f3 Nxd4 14. Qxd4 Bg4 15. Qc5 Qxc5 16. Rxc5 Bb6 17. Rc2
Rac8 18. Rxc8 Rxc8 19. Bd3 Ne4 20. Nd4 Nc5 21. Bf5 Bxf5 22. Nxf5 Rc7 23. Be5
Rd7 24. Bxg7 Ne6 25. Bf6 h5 26. Rd1 {Nakamura,H (2754)-Grischuk,A (2766) Paris
FRA 2019 1-0 (81)}) 12. Rc1 Bd7 {The position is equal.} 13. Qc2 $146 ({RR} 13.
N2f3 Ne4 14. Nxc6 bxc6 15. Qd4 f6 16. Rfd1 Qa5 17. a3 Bxa3 18. Ra1 Bxb2 19.
Rxa5 Bxd4 20. Nxd4 c5 21. Nf3 Bb5 22. Bf1 Reb8 23. Ra3 Rd8 24. g4 Rab8 25. h4
Nc3 26. Rc1 Ne2+ 27. Bxe2 Bxe2 {Dovramadjiev,T (2342)-Lysyj,I (2523) playchess.
com INT 2006 0-1 (100)}) ({RR} 13. N2f3 Ne4 14. Nxc6 bxc6 15. Qd4 f6 16. Rc2
Qb8 17. Rfc1 Qb7 18. Qd1 a5 19. Nd2 Qb8 20. g3 Ng5 21. Nf3 Nf7 22. Nd4 c5 23.
Rxc5 Bxc5 24. Rxc5 Qd6 25. Ba3 a4 26. b4 Rac8 27. Bf3 Rxc5 {Taimanov,M (2490)
-Ponomariov,R (2580) Cannes 1998 0-1 (74)}) 13... Ne4 14. Nxc6 Bxc6 15. Nf3 Rc8
16. Qd3 Re6 17. Qd4 {[%csl Gb2][%cal Rd4g7]} Qf8 $6 {Inaccuracy. Rg6 was best.}
(17... Rg6 $1 18. g3 Qe7 19. Ne5 Bxe5 20. Qxe5 Qd7 $1 21. Bh5 Nd2 22. Rfd1 Re8
$1 23. Qf4) 18. Rc2 f5 19. g3 Bc5 {[#]} 20. Qd3 $6 {Inaccuracy. Qd1 was best.}
(20. Qd1 $1 Rce8 21. a4 Qe7 22. Nd4 Bxd4 23. Qxd4 Ng5 24. h4 Ne4 25. Bh5 Rd8) (
{White should play} 20. Qd1 $1 $16) 20... Bb5 $4 {Blunder. f4 was best.} (20...
f4 $1) (20... f4 $1 $14) 21. Qxd5 $18 {[%mdl 64] Double Attack} Qd6 22. Qxd6 ({
Resist} 22. Qxb7 Rc7 $18) 22... Nxd6 23. Bxb5 {White is clearly winning.} axb5
24. Rfc1 b6 {[#]} 25. b4 $1 {[%mdl 512]} Nc4 (25... Bxb4 26. Rxc8+) 26. bxc5
bxc5 27. Nd2 Rxe3 $6 {Inaccuracy. Nxd2 was best.} (27... Nxd2 28. Rxd2 b4 29.
Rdc2 Rec6 30. Rc4 h6 31. Kf1 h5 32. a3 bxa3 33. Bxa3) 28. fxe3 {Precisão
Chessbase: Brancas 70% Pretas 39%. Precisão Lichess.org: Brancas 98% Pretas
84%. Precisão Chess,com: Brancas 97.7% Pretas 85.0%.} 1-0

[Event "Scherer Chess Master 2024"]
[Site "Joaçaba-SC"]
[Date "2024.05.06"]
[Round "5.2"]
[White "Fier, Alexandr"]
[Black "Delgado Ramirez, Neuris"]
[Result "1-0"]
[ECO "E00"]
[WhiteElo "2574"]
[BlackElo "2483"]
[Annotator "Stockfish 16.1"]
[PlyCount "117"]
[EventDate "2024.??.??"]
[EventCountry "BRA"]

{[%evp 17,117,41,48,48,41,35,45,57,109,83,91,85,76,57,62,41,47,48,48,51,42,20,
20,20,26,11,22,25,32,30,32,37,35,16,11,13,15,19,19,23,23,12,37,33,37,6,103,103,
109,109,109,107,108,108,309,159,167,167,161,119,163,163,160,162,190,158,158,
160,159,152,157,162,166,157,187,93,83,137,73,9,5,11,284,280,279,273,292,292,
289,291,412,419,418,408,442,435,446,462,553,555,526,506]} 1. d4 Nf6 2. c4 e6 3.
g3 Bb4+ 4. Bd2 Qe7 5. Bg2 Bxd2+ 6. Qxd2 d5 7. Nf3 c6 8. O-O Nbd7 9. Qc2 O-O (
9... Kf8 {9...0-0 0.44}) 10. Nbd2 e5 ({RR} 10... b6 11. e4 dxe4 12. Ng5 Bb7 13.
Ndxe4 Nxe4 14. Nxe4 Nf6 15. Rfe1 Rfd8 16. Rad1 h6 17. c5 Nxe4 18. Bxe4 Qf6 19.
Qc3 Rd7 20. Rd3 Rad8 21. Red1 Qg5 22. h4 Qg4 23. Bf3 Qf5 24. b4 a5 25. a3 {
Dogan,A (2182)-Haitin,I (2284) chess.com INT 2023 1-0 (45)}) 11. cxd5 ({RR} 11.
dxe5 Nxe5 12. Nxe5 Qxe5 13. cxd5 cxd5) 11... Nxd5 ({RR} 11... e4 12. d6) ({RR} 
11... cxd5 12. e4 exd4 ({RR} 12... dxe4 13. Nxe4 exd4 14. Rfe1) 13. exd5 ({RR} 
13. Rfe1 d3 14. Qxd3 Nc5) 13... Nxd5 14. Rfe1 Qf6 ({RR} 14... Qb4 15. a3 Qb6
16. Nc4 Qf6 17. Qe4) 15. Ne4 Qb6 16. Qc4 ({RR} 16. Qd2 Nb4 17. a3 ({RR} 17.
Nxd4 Ne5) 17... Nc6 18. Nd6 Nf6) 16... Nb4 ({RR} 16... N7f6 17. Qxd4 Qxd4 18.
Nxd4 Nxe4 19. Rxe4) 17. Rad1 d3 18. Rd2) 12. e4 {White is slightly better.} ({
RR} 12. dxe5 Nxe5 13. Nxe5 Qxe5 14. Nc4 Qe7 15. a3 Be6 16. b4 Rac8 ({RR} 16...
Rad8) 17. Rfd1 Nf6 ({RR} 17... Rfd8 18. e4 Nb6 19. Na5 f6 ({RR} 19... c5 20.
Rxd8+) ({RR} 19... Rxd1+ 20. Rxd1 c5 21. bxc5 Rxc5 22. Qxc5 Qxc5 23. Rd8+ Qf8
24. Nxb7) 20. Qc5 Qf7) 18. e4 ({RR} 18. Na5 Bd5) 18... Bxc4 19. Qxc4 Rcd8 ({RR
} 19... c5 20. Rac1 b6 21. f4) ({RR} 19... Rfd8 20. Qc5 ({RR} 20. Rd4 Rxd4 21.
Qxd4 c5 22. bxc5 Qxc5 23. Qxc5 Rxc5 24. Rd1 Kf8 25. f4 b6) 20... Qxc5 21. bxc5
Kf8 ({RR} 21... Re8 22. Rab1 Rc7 ({RR} 22... Nxe4 23. Bxe4 Rxe4 24. Rxb7 Ra4
25. Rdd7 Rf8 26. Rxa7) 23. f4 Nd7 24. Rdc1 f6) 22. e5 Nd5 23. Rab1 Rc7 24. Rb3
Ke7) 20. Rd4 ({RR} 20. Qc5 Qxc5 21. bxc5 Nd7) 20... Ng4 ({RR} 20... Rxd4 21.
Qxd4 a6 22. Rd1) ({RR} 20... Qe6 21. Qd3 ({RR} 21. Qxe6 fxe6 22. Rad1 ({RR} 22.
Rxd8 Rxd8 23. e5 Ng4) 22... Rxd4 23. Rxd4 e5) 21... Rxd4 22. Qxd4 a6 23. Rd1) (
{RR} 20... b5 21. Qc3 Rxd4 22. Qxd4 Rd8 23. Qc3 ({RR} 23. Qe3 Ng4 24. Qc3 Ne5)
23... Nxe4 24. Qxc6) 21. Rad1 Qf6 22. R1d2 g5 ({RR} 22... Ne5 23. Qc3 Rxd4 24.
Rxd4) 23. Qc5 ({RR} 23. h3 Ne5 24. Qc3 Rxd4 25. Rxd4 h5) 23... Rxd4 ({RR} 23...
b6 24. Qf5 ({RR} 24. Qc3) 24... Qxf5 25. exf5 Rxd4 26. Rxd4 Ne5 27. f4 gxf4 28.
gxf4 c5 29. bxc5 bxc5 30. Rd5 Ng4 31. Bf3 Nf6 32. Rxc5) 24. Qxd4 Qxd4 25. Rxd4
Re8 ({RR} 25... Ne5 26. f4 gxf4 27. gxf4 Ng6 28. e5 Re8 29. Kf2) 26. Rd7 b5 {
Lautier,J (2663)-Zvjaginsev,V (2673) Kallithea 2002 CBM 092 [Lautier,J] 1-0 
(53)} {RR} 27. Rxa7 Rd8 28. Bh3 Ne5 ({RR} 28... h5) 29. Re7 Nc4 ({RR} 29...
Rd1+ 30. Kg2 Nc4 31. Bd7 Rd6 32. e5 Nxe5 33. Rxe5 Rxd7 34. Rxg5+ Kf8) 30. Rc7 (
{RR} 30. Bd7 Kf8) 30... Rd6) 12... N5f6 ({RR} 12... Nb4 13. Qc3 exd4 14. Nxd4
Nb6 ({RR} 14... Qc5 15. Rfd1 Qxc3 16. bxc3 Na6 17. Nc4) 15. a3 Na6 16. b4 Rd8
17. N2b3) 13. h3 $146 ({RR} 13. Nc4 exd4 14. e5 Nd5 15. Rfe1 Nb4 16. Qb3 a5 17.
Nxd4 Nc5 18. Qc3 Be6 19. Nd6 Na4 20. Qc1 Nd3 21. N4f5 Qd8 22. Qe3 Nxe1 23. Rxe1
Nxb2 24. Bf1 b5 25. Qc1 Nc4 26. Bxc4 bxc4 27. Rd1 Qc7 {Guimard,C-Canepa,J
Montevideo 1938 1/2-1/2}) ({RR} 13. Rfe1 Rd8 14. Rad1) ({RR} 13. Nc4 exd4 14.
Nxd4 Ne5 15. Ne3 Rd8 16. Rad1) ({RR} 13. Nc4 exd4 14. Nxd4 Ne5 15. Ne3 Rd8 16.
Rad1 g6 17. h3 Bxh3 18. Nxc6 Nxc6 19. Bxh3 Nd4 20. Qa4 Qxe4 21. Qa3 Nf3+ 22.
Kh1 Qe5 23. Ng4 Nxg4 24. Qxf3 h5 25. Bxg4 hxg4 26. Rxd8+ Rxd8 27. Qxb7 Kg7 {
Moiseenko,A (2010)-Lepaev,A (2059) Voronezh 2017 0-1 (52)}) 13... exd4 14. Nxd4
Qc5 15. Qxc5 Nxc5 16. e5 Rd8 17. N2b3 Nxb3 18. Nxb3 Nd5 19. Rfd1 Re8 20. f4 Ne3
21. Rd6 Nxg2 22. Kxg2 Be6 23. Nc5 Bd5+ 24. Kf2 Rad8 25. a4 (25. Rxd8 {keeps
more tension.} Rxd8 26. Rd1 Kf8 27. b3 b6 28. Ne4) 25... f6 26. Rxd8 Rxd8 $11 {
[%mdl 4096] Endgame KRB-KRN} 27. e6 Kf8 28. a5 Ke7 29. Ra4 Rg8 30. f5 g6 $1 31.
Rb4 (31. Rh4 $5 {[%cal Rh4h7]} Rg7 32. Rb4 $11) 31... Kd6 $6 {Inaccuracy. b6
was best.} (31... b6 32. axb6 axb6 33. Rxb6 gxf5 34. Rb7+ Kd6 35. b4 Bxe6 36.
Rxh7 Rb8 37. Rb7) (31... b6 $11) 32. Nxb7+ $16 Ke5 33. Nc5 $1 Kd6 34. Nd7 gxf5
35. Nxf6 {[%mdl 64] Double Attack} Rc8 $4 {Blunder. Ra8 was best.} (35... Ra8
36. Nxd5 cxd5 37. Rb7 Kxe6 38. Ke3 h5 39. b4 Kd6 40. Kd3 (40. a6 $1 $16) 40...
Rg8 41. Rxa7) (35... Ra8 $16) 36. Rb7 $2 {Mistake. Nxd5 was best.} (36. Nxd5
cxd5 37. Rb7 Rc2+ 38. Ke3 Kxe6 39. a6 $1 Ke5 40. Re7+ $1 Kf6 41. Rxh7 Rxb2) ({
Worse is} 36. Nxh7 c5 $11) (36. Nxd5 $18 cxd5 37. Rb7 {[%mdl 64] Double Attack}
) 36... Bxe6 37. Nxh7 ({Don't play} 37. Rxa7 $6 Rb8 $14) 37... Ra8 38. h4 $6 {
Inaccuracy. Nf6 was best.} (38. Nf6 Rf8 39. Nh5 f4 40. g4 Ke5 41. b4 $1 a6 42.
Re7 Kd6 43. Ra7 Ke5) 38... c5 $6 {Inaccuracy. Bc8 was best.} (38... Bc8 39. Rb4
c5 40. Rb3 Be6 41. Rd3+ Ke5 42. Re3+ Kd6 43. Kf3 Rb8 44. Ng5) 39. Nf6 Ke5 40.
Nh5 Bd5 41. Rb5 Kd6 {Strongly threatening ...Kc6.} 42. Nf4 Bc6 ({Don't go for} 
42... Kc6 $2 43. Nxd5 $1 {[%mdl 512]} Kxd5 44. b4 $18) 43. Rb3 c4 44. Re3 Rb8
45. Re6+ Kd7 $6 {Inaccuracy. Kc5 was best.} (45... Kc5 {[#]} 46. Re2 $1 Kb5 47.
h5 Kxa5 48. Ke3 Kb4 49. Kd4 a5 50. h6 Be4 (50... a4 $142 51. h7 Rd8+ 52. Ke5 c3
53. bxc3+ Kc4 54. Kxf5 a3) 51. g4) 46. Ke3 $2 {Mistake. Re2 was best.} (46. Re2
Kd6 (46... Rb3 $142) 47. h5 Kc5 48. h6 Rh8 49. Re6 Be4 50. Ke3 Bb1 51. a6 Kb4)
(46. Re2 $18) 46... Rxb2 47. Kd4 Rb3 48. Rg6 (48. Re3 $16) 48... c3 $11 49. Nd3
Rb5 $4 {Blunder. Kc7 was best.} (49... Kc7 50. Nc5 Ra3 51. Na6+ Kb7 52. Nb4 Be4
53. Rg7+ Kb8 54. Na6+ Ka8 55. Nc5) (49... Kc7 $11 {and Black stays safe.} 50.
Nc5 Ra3) 50. Kxc3 $18 Rxa5 51. h5 {Threatens to win with h6.} f4 52. Nxf4 Be4
53. Rg7+ Ke8 $2 {Mistake. Kd6 was best.} (53... Kd6 54. h6 Re5 55. Kd4 Bf5 56.
Ng6 Re4+ 57. Kc3 Re3+ 58. Kd2 Rd3+ 59. Ke2) (53... Kd6 {was called for.} 54. h6
Ra3+ 55. Kd4 Bf5) 54. Kd4 Bb1 55. h6 Ra3 56. Ke5 {White is clearly winning.} a5
57. g4 Re3+ 58. Kd6 {Hoping for Nd5.} Rf3 $6 {Inaccuracy. Re1 was best.} (58...
Re1 59. h7 Bxh7 60. Rxh7 Rf1 61. Ne6 {[%csl Gd6][%cal Rh7e7]} Rd1+ 62. Ke5 a4
63. g5 a3 64. Ra7) 59. Re7+ {Precisão Chessbase: Brancas 71% Pretas 71%.
Precisão Lichess.org: Brancas 95% Pretas 91%. Precisão Chess,com: Brancas 95.
7% Pretas 90.6%.} 1-0

[Event "Scherer Chess Master 2024"]
[Site "Joaçaba-SC"]
[Date "2024.05.06"]
[Round "5.3"]
[White "Cubas, Jose Fernando"]
[Black "Perdomo, Leandro"]
[Result "0-1"]
[ECO "C63"]
[WhiteElo "2419"]
[BlackElo "2378"]
[Annotator "Stockfish 16.1"]
[PlyCount "136"]
[EventDate "2024.??.??"]
[EventCountry "BRA"]

{[%evp 14,136,42,38,41,39,30,27,27,36,23,14,26,22,45,24,45,4,14,1,9,24,37,-4,
41,16,20,15,73,66,69,68,228,228,223,223,213,217,235,227,246,195,201,193,221,
210,225,219,271,225,309,309,309,309,309,308,307,304,308,292,301,307,308,3,3,2,
2,3,105,0,16,17,15,1,7,1,15,15,15,0,0,0,0,-3,0,-169,-145,-258,-167,-164,21,-1,
-1,-22,0,0,0,-553,0,-436,-315,-291,-193,-250,-250,-809,-789,-848,-848,-848,
-848,-848,-848,-848,-848,-870,-872,-871,-875,-875,-875,-876,-877,-772,-771]} 1.
e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. d3 fxe4 5. dxe4 Nf6 6. O-O d6 7. Nc3 Be7 8. Qd3
O-O 9. Bc4+ Kh8 10. Ng5 Qe8 {White has an edge.} 11. Ne6 Bxe6 12. Bxe6 Nd4 ({RR
} 12... Nh5 13. g3 Nd4 14. Bh3 Rf3 15. Qd1 Qg6 16. Nd5 Qxe4 17. Bg2 Qxd5 18. c3
e4 19. Qxd4 Qxd4 20. cxd4 Rd3 21. Bxe4 Rxd4 22. Bxb7 Rb8 23. Bf3 Nf6 24. Be3
Rd3 25. b3 c5 26. Rac1 h6 27. Rc4 {Womacka,M (2371)-Beerdsen,T (2496) chess.
com INT 2023 0-1 (50)}) 13. Bh3 Qg6 14. f4 $146 ({RR} 14. Be3 c5 15. Rad1 Rab8
16. Bxd4 cxd4 17. Nd5 Bd8 {1/2-1/2 (17) Womacka,M (2435)-Krastev,A (1961)
Schwaebisch Gmuend 2017}) 14... Rad8 15. f5 Qh5 16. Be3 c5 17. Rae1 a6 18. a4
Rg8 19. Nd5 c4 20. Qxc4 Rc8 $6 {Inaccuracy. Nxd5 was best.} (20... Nxd5 21.
Qxd5 Nxc2 22. Bb6 Nxe1 23. Bxd8 Nxg2 24. Bxg2 Bxd8 25. Qxb7 a5 26. b4) (20...
Nxd5 $11 21. Bxd4 (21. Qxd5 Nxc2 22. Bb6 Nxe1 $11) 21... Nf4) 21. Qa2 $1 $16
Nxd5 22. Qxd5 {Strongly threatening f6.} Nxc2 $4 {Blunder. Bf6 was best.} (
22... Bf6 23. Bxd4 $1 exd4 24. Qxd6 Rc6 25. Qa3 Be5 26. Qe7 Re8 27. Qxb7 Rxc2
28. Qxa6) (22... Rxc2 $14 23. f6 (23. Bxd4 exd4 24. Qxb7 Bh4 $14) 23... Bxf6)
23. f6 $1 $18 {[%cal Rf6e7][%mdl 64] Discovered Attack} gxf6 24. Bxc8 Nxe1 25.
Rxe1 Rxc8 26. Qxb7 {[%mdl 64] Double Attack} Qe8 27. Rc1 (27. Qxa6 Ra8 $14)
27... Rxc1+ 28. Bxc1 a5 29. b3 Bf8 30. h3 Qg6 {intending ...Bh6.} 31. Bd2 Bh6
32. Qb8+ Kg7 33. Qa7+ (33. Bxa5 Be3+ 34. Kf1 Qxe4 $11) (33. Qxd6 Bxd2 34. Qxd2
Qxe4 $11) 33... Kg8 34. Qa8+ (34. Bxa5 Qxe4 35. Qb8+ Kg7 $11) (34. Qxa5 Bxd2
35. Qxd2 Qxe4 $14) 34... Kg7 35. Qb7+ (35. Bxa5 Qg3 $11) (35. Qxa5 Bxd2 36.
Qxd2 Qxe4 $11) 35... Kf8 36. Qc8+ Kg7 37. Qd7+ (37. Bxa5 Be3+ 38. Kf1 Qxe4 $14)
37... Kg8 38. Bxa5 $4 {Blunder. Qc8+ was best.} (38. Qc8+ Kg7 39. Qb7+ Kf8 40.
Bxa5 Be3+ 41. Kf1 h5 42. Qc8+ Kg7 43. Qd7+ Kh6) (38. Qe6+ $18 Kg7 39. Qe7+ (39.
Bxa5 Be3+ 40. Kf1 Qxe4 $14) (39. Qxd6 Bxd2 40. Qxd2 Qxe4 $11) 39... Kg8 40.
Qe6+ (40. Qxd6 Bxd2 41. Qxd2 Qxe4 $11) (40. Bxa5 Qxe4 41. Qe6+ Kg7 $14) 40...
Kg7 41. Qe7+ (41. Bxa5 Qxe4 42. Qg4+ Qxg4 $14) (41. Qxd6 Bxd2 42. Qxd2 Qxe4 $11
) 41... Kg8 42. Qe6+ (42. Qxd6 Bxd2 43. Qxd2 Qxe4 $11) (42. Bxa5 Qxe4 43. Qe6+
Kg7 $14)) 38... Qxe4 $11 39. Qg4+ Qxg4 40. hxg4 {[%mdl 4096] Endgame aiming
for Bb6. KB-KB} Kf7 $4 {Blunder. Be3+ was best.} (40... Be3+ 41. Kf1 Kf7 42.
Ke2 Bd4 43. b4 Ke6 44. b5 Bc5 45. Bd8 e4 46. a5) (40... Be3+ $11 41. Kf1 Kf7)
41. Bd8 $4 {Blunder. Bb6 was best.} (41. Bb6 $1) (41. Bb6 $1 $16 Ke6 42. b4)
41... Bd2 42. Kf2 Ke6 43. Ke2 Bb4 44. a5 Kd7 $6 {Inaccuracy. Bc5 was best.} (
44... Bc5 45. a6 Ba7 46. b4 Kd7 47. Bxf6 Kc6 48. Kd3 Kb5 49. g5 Bb8 50. Ke4)
45. a6 {Threatens to win with a7.} Kc6 46. Kd3 $6 {Inaccuracy. Bxf6 was best.}
(46. Bxf6 Kb6 47. Kd3 Kxa6 48. Kc4 Ba5 49. Kd5 Kb5 50. Kxd6 e4 51. Bg5 Bb6)
46... d5 47. Bxf6 e4+ 48. Kd4 Bc5+ 49. Kc3 $4 {Blunder. Ke5 was best.} (49. Ke5
$1 e3 50. Bh4 d4 51. Ke4 Kb5 52. Kd3 Kxa6 53. Kc4 Bb6 54. b4 Kb7) (49. Ke5 $1
$11 {and White has nothing to worry.}) 49... Kb5 $19 50. b4 (50. a7 $17 Bxa7
51. Be5) 50... Bxb4+ 51. Kd4 Kxa6 $4 {Blunder. Kc6 was best.} (51... Kc6 52.
Bg5 Ba3 53. Bd8 Bc5+ 54. Ke5 e3 55. Bg5 Ba7 56. Bh6 Bb6 57. Bg5) ({Black
should try} 51... Kc6 $19 {Hoping for ...Bc5+.} 52. Bg5 Bc5+ 53. Ke5 e3) 52.
Kxd5 e3 53. Bh4 Kb5 54. Ke4 e2 {...Kc4 is the strong threat.} 55. Kf5 $4 {
[#] Blunder. Kf3 was best.} (55. Kf3 e1=R 56. Bxe1 Bxe1 57. g5 Kc4 58. Kg4 Bd2
59. Kh5 Bxg5 60. Kxg5 Kd3) (55. Kf3 $11 {and White stays safe.}) 55... Kc4 $4 {
Blunder. h6 was best.} (55... h6 $1 56. Kg6 Bd2 57. Kh7 Kc4 58. Kg7 Kd3 59. Kg6
Bg5 60. Be1 Kc2 61. Bb4) ({Black should play} 55... h6 $1 $19 56. Kf4 e1=Q 57.
Bxe1 Bxe1) 56. Ke4 $4 {Blunder. g5 was best.} (56. g5 Kd3 57. g6 hxg6+ 58. Kxg6
Kd2 59. Kf5 Kd1 60. Ke4 Be1 61. Be7 Bf2) (56. g5 $11) 56... Bd2 57. Bf2 Kc3 58.
Kf3 (58. g5 $142) 58... Kd3 59. Bh4 $6 {Inaccuracy. g5 was best.} (59. g5 Bxg5
60. Be1 Bd2 61. Bf2 Ba5 62. g4 Kd2 63. g5 Kd1 64. Kg4 Bd2) (59. g5 $142) 59...
h6 {Black is clearly winning.} 60. Bf2 e1=Q 61. Bxe1 Bxe1 {KB-KPP} 62. g3 Bd2 {
White must now prevent ...Be3.} 63. Kf2 Bg5 64. Kf3 $2 {Checkmate is now
unavoidable. Kg2 was best.} (64. Kg2 Ke3 65. Kf1 Kf3 66. Kg1 Be3+ 67. Kh2 Kf2
68. Kh3 Kg1 69. g5 hxg5) 64... Be3 65. Kg2 Ke2 66. Kh2 Kf1 67. Kh3 Kg1 68. Kh4
Kg2 {Precisão Chessbase: Brancas 64% Pretas 68%. Precisão Lichess.org:
Brancas 82% Pretas 87%. Precisão Chess,com: Brancas 80.8% Pretas 86.2%..} 0-1

[Event "Scherer Chess Master 2024"]
[Site "Joaçaba-SC"]
[Date "2024.05.06"]
[Round "5.4"]
[White "Quintiliano, Renato R."]
[Black "Librelato, Kathie Goulart"]
[Result "0-1"]
[ECO "E04"]
[WhiteElo "2487"]
[BlackElo "2165"]
[Annotator "Stockfish 16.1"]
[PlyCount "82"]
[EventDate "2024.??.??"]
[EventCountry "BRA"]

{[%evp 15,82,28,53,-50,-48,-68,-67,-71,-64,-59,-42,-70,-74,-101,-92,-96,-105,
-109,-78,-80,-51,-99,-78,-186,-179,-183,-185,-183,-180,-208,-211,-219,-225,
-239,-183,-234,-222,-245,-254,-249,-140,-208,-189,-243,-223,-223,2,0,56,33,100,
95,89,29,124,-140,-140,-140,-50,-440,-440,-435,-326,-416,-376,-417,-405,-442,
-444]} 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 dxc4 5. Bg2 Nc6 6. O-O Rb8 7. Nc3 a6
8. e4 b5 $6 {Inaccuracy. Be7 was best.} (8... Be7 9. d5 exd5 10. exd5 Nb4 11.
Ne5 Bf5 12. Nxc4 O-O 13. a3 Nd3 $1 14. Be3) 9. a3 $146 {Mistake. d5 was best.}
(9. d5) ({White should try} 9. d5 $14 Nb4 10. Ne1) ({RR} 9. d5 Nb4 10. Qe2 Be7
11. Ne5 exd5 12. a3 Bb7 13. axb4 d4 14. Rd1 Bxb4 15. Nd5 Nxd5 16. exd5 O-O 17.
Qg4 Qe7 18. Qxd4 Rbd8 19. Bf4 c6 20. d6 Rxd6 21. Qe4 g5 22. Rxd6 Bxd6 23. Ng4
gxf4 {Kozlovskaya,V-Fatalibekova,E Tbilisi (Georgia) 1974 0-1 (35)}) ({RR} 9.
d5 exd5 10. exd5 Nb4 11. Nd4 Bd7 12. Re1+ Be7 13. Qe2 Nd3 14. Bg5 Kf8 15. Rf1
h6 16. Be3 g6 17. b3 Kg7 18. bxc4 bxc4 19. Rab1 Bb4 20. Qc2 Ng4 21. Ne4 Nxe3
22. fxe3 f5 23. Nd2 Bxd2 {Landa,K (2655)-Naiditsch,A (2697) Mainz 2009 0-1 (32)
}) ({RR} 9. e5 Nd5 10. Ng5 h6 11. Nge4 Bb7 12. Be3 Ncb4 13. Qe2 Be7 14. Qg4 g6
15. Rad1 h5 16. Qe2 Kf8 17. Bd2 Kg7 18. h4 Nxc3 19. bxc3 Bxe4 20. Bxe4 Nd5 21.
a4 c6 22. Ra1 Qb6 23. Ra2 b4 {Vogel,R (2447)-Sonntag,H (2327) Berlin GER 2022
1/2-1/2}) ({RR} 9. d5 Nb4 10. Ne5 Bd6 11. f4 exd5 12. a3 Nd3 13. Nxd3 cxd3 14.
exd5 Bc5+ 15. Kh1 Bf5 16. Re1+ Kf8 17. Be3 Bxe3 18. Rxe3 h5 19. h3 Qd7 20. Qf1
g6 21. Re5 Kg7 22. Nd1 Rhe8 23. Ne3 Be4 {Vukic,M (2460)-Marjanovic,S (2505)
Skender Vakuf (Knezevo) 1980 0-1 (42)}) ({RR} 9. Qe2 Be7 10. Bf4 O-O 11. Rad1
Nb4 12. Ne1 Bd7 13. a3 Nd3 14. Nxd3 cxd3 15. Qxd3 a5 16. Rfe1 b4 17. axb4 axb4
18. Ne2 Rb6 19. d5 Qb8 20. Nd4 exd5 21. exd5 Bd6 22. Bg5 Ng4 23. h3 Ne5 {
Sygulski,A-Adamski,J (2425) Zielona Gora 1982 0-1 (43)}) 9... Be7 $15 10. Be3
O-O 11. Qe2 {Black is slightly better.} Na5 12. Rad1 Bb7 13. Bf4 Re8 14. h3 h6
15. g4 Nb3 16. Bg3 Nh7 17. Qe3 Bf8 $6 {Inaccuracy. Rc8 was best.} (17... Rc8)
18. Kh1 $6 {Inaccuracy. h4 was best.} (18. h4 Be7) 18... Qe7 19. Bh4 $6 {
Inaccuracy. a4 was best.} (19. a4) (19. a4 $17) 19... g5 $19 20. Bg3 Rbd8 21.
Ne5 Bg7 22. Rfe1 f6 23. Nf3 Nf8 24. h4 Ng6 $6 {Inaccuracy. c5 was best.} (24...
c5 25. d5 Qf7 26. dxe6 Nxe6 27. hxg5 fxg5 28. Ne5 Qf6 29. Nd7 Qe7 30. Nb6) 25.
hxg5 $6 {Inaccuracy. h5 was best.} (25. h5 Nf8 26. a4 c6 27. d5 e5 28. Qa7 cxd5
29. exd5 b4 30. d6 Qd7 $1) 25... fxg5 ({Much less strong is} 25... hxg5 26. e5
$17) 26. d5 e5 27. a4 b4 $6 {Inaccuracy. Qd7 was best.} (27... Qd7 28. axb5
axb5 29. Nxg5 hxg5 30. Qxg5 Qe7 31. Qh5 Rf8 32. g5 Kf7 33. Kg1) (27... Qd7 $19
28. Qa7 Rb8 29. axb5 axb5) 28. Ne2 (28. Nb1 $17) 28... Nf4 29. Nd2 Nd4 30. Nxc4
{[%cal Re2d4]} Ndxe2 $4 {Blunder. Nc2 was best.} (30... Nc2 31. Qd2 Nxe1 32.
Rxe1 Qf7 33. Qxb4 Bc8 34. Ne3 Nd3 35. Qd2 Nxf2+ 36. Bxf2) (30... Nc2 $19 31.
Qd2 Nxe1 32. Rxe1 Qd7) 31. Rxe2 $11 Qd7 $6 {Inaccuracy. Bc8 was best.} (31...
Bc8 32. Bxf4 $1 exf4 33. Qh3 h5 34. Bf3 Be5 35. Qg2 hxg4 36. Bxg4 Kg7 37. Bxc8)
(31... Bc8 $11) 32. Rc2 Qxg4 (32... Bc8 $14) 33. Qf3 $1 $16 {[%cal Rf3g4]} Qd7
34. Ne3 $6 {Inaccuracy. Rdc1 was best.} (34. Rdc1 $1 Qxa4 35. b3 Qb5 36. Ne3
Rf8 37. Qd1 Rf7 38. Rxc7 Rxc7 39. Rxc7 Bc8) ({White should play} 34. Rdc1 $16)
34... Rf8 $6 {[#] Inaccuracy. Qf7 was best.} (34... Qf7) (34... Qf7 $11 {
keeps the balance.}) 35. Nf5 $4 {Blunder. Bxf4 was best.} (35. Bxf4 $1) (35.
Bxf4 $1 $16 {is necessary to keep the advantage. Threatens to win with Bh3.} b3
36. Rcc1) 35... Rxf5 $1 $17 36. exf5 Bxd5 $6 {Inaccuracy. Nxg2 was best.} (
36... Nxg2 37. Kxg2 Bxd5 38. Qxd5+ Qxd5+ 39. Rxd5 Rxd5 40. Rxc7 e4 41. Rc4 a5
42. b3) (36... Nxg2 $17 37. Kxg2 Bxd5 38. Qxd5+ Qxd5+ 39. Rxd5 Rxd5) 37. Rcd2
$4 {Blunder. Rxd5 was best.} (37. Rxd5 Qxd5) ({Only move:} 37. Rxd5 $15 Nxd5
38. Rd2) 37... Bxf3 $19 38. Rxd7 Rxd7 $6 {Inaccuracy. Bxg2+ was best.} (38...
Bxg2+ 39. Kh2 Rxd7 40. Rxd7 Bc6 41. Rxc7 Bxa4 42. f3 Bb5 43. b3 Bf8 44. Bf2)
39. Rxd7 $6 {Inaccuracy. Bxf3 was best.} (39. Bxf3 Rxd1+ 40. Bxd1 a5 41. Kg1
Kf7 42. Kf1 Kf6 43. Bc2 h5 44. Be4 Bf8) 39... Nxg2 40. Rxc7 Ne3+ 41. Kg1 Nxf5 {
Precisão Chessbase: Brancas 49% Pretas 57%. Precisão Lichess.org: Brancas
84% Pretas 88%. Precisão Chess,com: Brancas 80.1% Pretas 84.1%.} 0-1

[Event "Scherer Chess Master 2024"]
[Site "Joaçaba-SC"]
[Date "2024.05.06"]
[Round "5.5"]
[White "Di Berardino, Diego Rafael"]
[Black "Flores Quillas, Diego Saul Rodri"]
[Result "0-1"]
[ECO "E47"]
[WhiteElo "2484"]
[BlackElo "2431"]
[Annotator "Stockfish 16.1"]
[PlyCount "60"]
[EventDate "2024.??.??"]
[EventCountry "BRA"]

{[%evp 24,60,11,-5,-1,-6,9,-34,-23,-67,-51,-61,-41,-42,-46,-46,-47,-50,-52,
-167,-159,-226,-237,-227,-233,-335,-327,-325,-325,-388,-392,-358,-364,-433,
-429,-429,-419,-437,-462]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6.
Nge2 d5 7. cxd5 cxd4 8. exd4 Nxd5 9. O-O Nc6 10. a3 Be7 11. Bc2 Re8 12. Qd3 g6
13. Bh6 ({RR} 13. Qf3 Nxc3 14. bxc3 Bd7 15. Rd1 Na5 16. Nf4 Bd6 17. Nh5 f5 18.
Bf4 Bxf4 19. Nxf4 Rc8 20. Qg3 Qc7 21. Rd3 Bb5 22. Rf3 Nc4 23. Bb3 Nd2 24. Bxe6+
Rxe6 25. Nxe6 Nxf3+ 26. Qxf3 Qxc3 27. Qd1 Ba4 {Vitiugov,N (2596)-Grigoriants,S
(2582) Moscow 2006 1/2-1/2 (47)}) 13... Nxc3 14. bxc3 b6 15. Ng3 $146 {
Inaccuracy. Rfe1 was best.} (15. Rfe1 Bg5 16. Bxg5 Qxg5 17. Ng3 Bb7 18. Ne4 Qe7
19. Qg3 Na5 20. h4 Bxe4) ({RR} 15. Rfd1 Bb7 16. Qe3 Rc8 17. Be4 Na5 18. Bxb7
Nxb7 19. Ng3 Nd6 20. a4 Qd7 21. d5 Nc4 22. Qf3 exd5 23. Rxd5 Qe6 24. h3 Qf6 25.
Qxf6 Bxf6 26. Rc1 Re7 27. Bg5 Bxg5 28. Rxg5 Rd8 29. Rg4 Ne5 {Magar,T (2095)-De
Guzman,R (2417) Los Angeles 2003 0-1 (39)}) 15... Bb7 {Black is slightly
better.} 16. Rfd1 Rc8 17. Ba4 Bg5 18. Bxg5 Qxg5 19. Ne4 Qe7 $1 20. c4 Red8 $1
21. d5 $2 {Mistake. Bxc6 was best.} (21. Bxc6 $1) (21. Bxc6 $1 $15 Bxc6 22. Ng3
) 21... Ne5 $19 {[%mdl 64] [#] Double Attack} 22. Qg3 $6 {Inaccuracy. Qe3 was
best.} (22. Qe3 exd5) (22. Qh3 $17 {was called for.} Nxc4 23. Qc3) 22... exd5
23. cxd5 Rxd5 ({Much less strong is} 23... Bxd5 24. Re1 $17) 24. Re1 $6 {
Inaccuracy. Rxd5 was best.} (24. Rxd5 Bxd5 25. Nd2 Rc5 26. h4 (26. Re1 {
was worth a try.} Qc7 27. Nf1) 26... Nc6 27. Bxc6 Bxc6 28. Nf1 Kg7 29. Rd1 Qe5)
(24. Rxd5 {might work better.} Bxd5 25. Nd2) 24... Nd3 25. Re3 Re5 26. Nd6 $6 {
Inaccuracy. Bb5 was best.} (26. Bb5 Rxb5 27. Qd6 Qxe4 28. Rxe4 Bxe4 29. f3 Rd5
30. Qe7 Bf5 31. Qxa7 b5) 26... Qxd6 27. Rxd3 Qf6 {[#] And now ...Rg5 would win.
} 28. Rad1 Rg5 29. Rd6 Qf5 30. Rd8+ Kg7 {Precisão Chessbase: Brancas 35%
Pretas 84%. Precisão Lichess.org: Brancas 90% Pretas 97%. Precisão Chess,com:
Brancas 88.5% Pretas 97,9%..} 0-1

[Event "Scherer Chess Master 2024"]
[Site "Joaçaba-SC"]
[Date "2024.05.06"]
[Round "6.1"]
[White "Do Valle Cardoso, Lucas"]
[Black "Flores Quillas, Diego Saul Rodri"]
[Result "0-1"]
[ECO "B68"]
[WhiteElo "2367"]
[BlackElo "2431"]
[Annotator "Stockfish 16.1"]
[PlyCount "94"]
[EventDate "2024.??.??"]
[EventCountry "BRA"]

{[%evp 18,94,54,15,35,6,67,5,80,80,85,67,121,119,121,121,172,172,176,176,182,
-166,-171,-157,-132,-165,0,0,0,0,0,0,0,-151,0,0,0,0,23,9,2,-187,-188,-341,-333,
-303,-315,-342,-342,-330,-329,-337,-311,-343,-336,-419,-327,-305,-303,-323,
-279,-313,-313,-313,-313,-465,-445,-440,-436,-425,-410,-448,-433,-519,-510,
-569,-584,-752,-732]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6.
Bg5 e6 7. Qd2 a6 8. O-O-O Bd7 9. f4 Be7 10. Kb1 b5 11. a3 ({RR} 11. Bxf6 Bxf6
12. Nxc6 Bxc6 13. Qxd6 Qxd6 14. Rxd6 Rc8 15. a4 Bxc3 16. bxc3 Bxe4 17. Rxa6
Rxc3 18. Bxb5+ Ke7 19. Re1 Bxc2+ 20. Kb2 Rhc8 21. Rc1 Rb3+ 22. Ka2 Rbc3 23. Kb2
Rb3+ 24. Ka2 Rbc3 25. Kb2 Rb3+ {Yu,Y (2705)-Salem,A (2586) Doha 2014 1/2-1/2})
11... Qb6 $6 {Inaccuracy. h6 was best.} (11... h6 12. Bh4) (11... h6 $11 12.
Bh4 Nxd4 13. Qxd4 Bc6) ({RR} 11... b4 12. Nxc6 bxc3 13. Nxd8 cxd2 14. Bxf6 gxf6
15. Nb7 Bc6 16. Na5 Bxe4 17. Rxd2 d5 18. Bd3 f5 19. Rc1 O-O 20. c4 Rac8 21. Ka2
Bxd3 22. Rxd3 dxc4 23. Rxc4 Rxc4 24. Nxc4 Rd8 25. Rxd8+ Bxd8 26. Kb3 {Djokic,M
(2148)-Urban,S (2036) chess.com INT 2023 0-1 (54)}) 12. Nf3 $146 {Inaccuracy.
Nxc6 was best.} (12. Nxc6 Bxc6 13. e5 dxe5 14. fxe5 Ng8 $1 15. Na2 a5 $1 16.
Be2 h6 17. Be3 Bc5) ({White should play} 12. Nxc6 $14 Bxc6 13. e5) ({RR} 12.
Nb3 b4 13. axb4 Qa7 14. Bxf6 gxf6 15. Na2 Rb8 16. Nd4 Qb7 17. c3 Nxd4 18. Qxd4
e5 19. fxe5 fxe5 20. Qe3 Be6 21. c4 O-O 22. Be2 Kh8 23. g4 Qc8 24. b3 Bxg4 25.
Bxg4 Qxg4 26. Rhg1 Qh4 {Kamalidenova,M (2339)-Soumya,S (2351) Tornelo INT 2021
1-0 (44)}) 12... Rd8 $6 {Inaccuracy. h6 was best.} (12... h6 $1 13. Bxf6 gxf6
14. Na2 Qa5 15. Be2 Qxd2 16. Rxd2 Bd8 17. Rhd1 Bc7 18. g3) (12... h6 $1 $11 13.
Bh4 Rd8) 13. e5 $16 dxe5 14. fxe5 ({Reject} 14. Nxe5 $6 Bc8 $11) 14... Bc8 15.
Bd3 Nd5 16. Ne4 O-O 17. Bxe7 Ncxe7 18. Nf6+ $1 gxf6 19. exf6 $4 {Blunder. Qh6
was best.} (19. Qh6 $1) (19. Qh6 $1 $18 {[%csl Gd3][%cal Rh6h7] is the narrow
road to win.} Ng6 20. exf6 Nxf6 21. Ng5) 19... Ng6 $19 20. Qh6 {[%csl Gf6]
[%cal Rh6g7]} Nxf6 21. Ng5 {aiming for Rdf1.} b4 $4 {Blunder. e5 was best.} (
21... e5 $1) ({Better is} 21... e5 $1 $19 22. h4 e4 23. Bxe4 Rxd1+ 24. Rxd1 Rd8
) 22. a4 $1 $11 Rd5 23. h4 $1 {Black must now prevent Rdf1.} Rfd8 $1 24. Rdf1 {
[#]} Rf5 $1 {And now ...b3 would win.} 25. h5 $4 {[#] Blunder. g4 was best.} (
25. g4 $1 {[%cal Rg4f5]} Rxf1+ 26. Rxf1 Rxd3 $1 27. Rxf6 Qg1+ $1 28. Ka2 Ra3+
$1 29. bxa3 b3+ $1 30. cxb3 Qh2+) (25. g4 $1 $11 Ne5 26. Rhg1 (26. gxf5 $2 {
loses.} Neg4 $19)) (25. Bxf5 exf5) 25... Nf8 $4 {Blunder. Ne5 was best.} (25...
Ne5 $1) (25... Ne5 $1 $17 {[%cal Re5g4]} 26. Bxf5 exf5 27. Nxh7 Nd5 28. Qxb6
Nxb6 29. Nf6+ Kg7) 26. Bxf5 exf5 27. Ne4 Nd5 28. Qg5+ Kh8 {[#] Hoping for ...
f6.} 29. h6 $4 {Blunder. a5 was best.} (29. a5 $1 {[%cal Ra5b6]} h6) (29. a5 $1
$11 {[%mdl 512] and White has nothing to worry.} Qxa5 30. Nf6) 29... Ng6 $19
30. a5 $2 {Mistake. Rxf5 was best.} (30. Rxf5) (30. Rxf5 {is the only way for
White.} f6 31. Rxf6 Nxf6 32. Qxf6+ Qxf6 33. Nxf6) 30... Qxa5 31. Rd1 {White
wants to mate with Rxd5!} Qb6 32. Nd2 f6 33. Qg3 Ne3 34. Qf2 {Strongly
threatening Nc4!} Qe6 {Threatens to win with ...b3.} 35. Rde1 f4 36. Nf1 $6 {
Inaccuracy. b3 was best.} (36. b3 Qc6 37. Nc4 Qxg2 38. Rd1 Rf8 39. Qxg2 Nxg2
40. Rd6 Bg4 41. Rxa6 Ne5) 36... Nd1 37. Qe2 Qxe2 38. Rxe2 Bg4 39. Rd2 Rxd2 40.
Nxd2 Ne3 41. Ne4 $6 {Inaccuracy. g3 was best.} (41. g3 {41.Re1 -2.96} Bf5 42.
gxf4 Bxc2+ 43. Ka2 Kg8 44. Nb3 Nxf4 45. Nd4 Bg6 46. Kb3 Nfd5) (41. Re1 $142)
41... b3 {[%cal Bb4b3,Bb3c2][%mdl 32]} 42. Nxf6 bxc2+ 43. Kc1 Bf5 44. Nh5 Nxg2
{Black is clearly winning.} 45. b4 Ne5 46. Kd2 Nd3 47. Nf6 $4 {[#] Checkmate
is now unavoidable. Ng7 was best.} (47. Ng7 Bg6 48. Ne6 c1=Q+ 49. Rxc1 Nxc1 50.
Ng5 Nd3 51. Kc3 Ne3 52. Kd2 Nxb4) 47... Nge1 $1 {Precisão Chessbase: Brancas
56% Pretas 72%. Precisão Lichess.org: Brancas 86% Pretas 92%. Precisão Chess,
com: Brancas 82.7% Pretas 92.2%.} 0-1

[Event "Scherer Chess Master 2024"]
[Site "Joaçaba-SC"]
[Date "2024.05.06"]
[Round "6.2"]
[White "Librelato, Kathie Goulart"]
[Black "Di Berardino, Diego Rafael"]
[Result "1/2-1/2"]
[ECO "C10"]
[WhiteElo "2165"]
[BlackElo "2484"]
[Annotator "Stockfish 16.1"]
[PlyCount "157"]
[EventDate "2024.??.??"]
[EventCountry "BRA"]

{[%evp 19,157,28,33,27,23,0,5,7,8,5,7,4,10,-9,15,12,12,12,14,20,55,-10,-9,-12,
15,-10,-2,-8,-12,-7,-7,-10,-10,-2,-10,-5,-11,-9,-9,-10,-8,-14,-15,-13,-13,-27,
-2,-35,-35,-63,-28,-28,-28,-30,-32,-33,-52,-55,-16,-12,-10,-17,-17,-56,-56,-51,
-42,-86,-97,-97,-4,-8,-8,-9,-7,-7,-9,-26,-19,-25,-28,-30,-29,-60,-58,-310,-333,
-302,-301,-471,-471,-394,-299,-250,-250,-456,-452,-441,-430,-428,-4,-4,-3,-3,
-3,-3,-3,-4,-4,-8,-4,-4,-4,-8,-8,-8,-8,-11,-8,-7,0,0,0,-1,0,0,0,-3,-5,-10,0,0,
0,0,-2,-3,-3,-16,-1,-6]} 1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6
6. Nxf6+ Nxf6 7. c3 Be7 8. Bd3 O-O 9. O-O b6 10. Qe2 Bb7 11. Rd1 ({RR} 11. Bf4
c5 12. dxc5 bxc5 13. Rad1 Qb6 14. Ne5 {1/2-1/2 (14) Rublevsky,S (2645)-Volkov,
S (2634) Sochi 2005}) 11... Qd6 $146 ({RR} 11... Qc8 12. Bf4 Rd8 13. Rac1 c5
14. Ne5 Bd5 15. dxc5 Qxc5 16. b4 Qc8 17. c4 Bc6 18. Bg5 Ba4 19. Rd2 Bxb4 20.
Bxh7+ Kf8 21. Rd3 Rxd3 22. Bxd3 Ba3 23. Re1 Bb4 24. Rc1 Ba3 25. Rb1 Bc5 26. Qf3
{Haslinger,S (2511)-Owen,D (2095) Liverpool 2008 1-0 (41)}) ({RR} 11... Qd5 12.
Bc4 Qh5 13. Ne5 Qxe2 14. Bxe2 Rfd8 15. Bf3 Bxf3 16. Nxf3 Rd5 17. Bf4 Ne8 18. c4
Rdd8 19. Ne5 Bd6 20. Bg3 Bxe5 21. Bxe5 c6 22. Bf4 Rd7 23. Rd2 Rad8 24. Rad1 f6
25. b3 Kf7 26. h4 {Golubev,M (2461)-Fajdetic,H (2151) chess.com INT 2023 0-1 
(82)}) ({RR} 11... Qc8 12. Bg5 h6 13. Bh4 c5 14. Rac1 Qc6 15. Qf1 Qd5 16. Ne5
cxd4 17. cxd4 Rac8 18. Rxc8 Rxc8 19. a3 g5 20. Bg3 Nh5 21. Bc4 Qe4 22. f3 Nxg3
23. fxe4 Nxf1 24. Rxf1 Bxe4 25. Bb3 Rf8 26. Rc1 {Alekhine,A-Malcanek,O Olomouc
1943 1/2-1/2 (46)}) ({RR} 11... Re8 12. Bf4 Qc8 13. Rac1 c5 14. Bb1 Qc6 15.
dxc5 Qxc5 16. Ne5 Rad8 17. Bd3 Qc8 18. Bg5 Rd5 19. Bc4 Rxd1+ 20. Rxd1 Rd8 21.
Rxd8+ Bxd8 22. h4 Nd5 23. Bd3 Bxg5 24. hxg5 Nf4 25. Qe3 Nxg2 26. Qh3 {Lima,S 
(1820)-Consuli,A Rua Alvaro Alvim, 48 - Sala 9 2022 1-0 (32)}) 12. h3 c5 13.
dxc5 Qxc5 14. Bf4 Rad8 15. Rac1 Bd6 16. b4 Qc7 17. Bxd6 Rxd6 18. c4 Rfd8 19.
Ne5 Rd4 20. a3 (20. c5 $14) 20... g6 $11 21. Nf3 R4d6 22. Ne5 Rd4 {...Nh5 is
the strong threat.} 23. Nf3 Bxf3 24. Qxf3 Nd7 {And now ...Ne5 would win.} 25.
Be2 Ne5 26. Qg3 Rxd1+ 27. Rxd1 Rxd1+ 28. Bxd1 Qd6 $36 {[%mdl 2048] Black is
more active.} 29. Be2 Qd4 30. Qe3 Qxe3 31. fxe3 {[%mdl 4096] Endgame KB-KN} Kf8
32. Kf2 a5 33. Ke1 axb4 34. axb4 Nc6 35. c5 bxc5 36. bxc5 Na5 37. Bd1 Ke7 38.
Ba4 Nb7 39. c6 Nd6 40. Ke2 Nc8 41. Kf3 Kd6 42. Kf4 f6 43. h4 Ne7 44. g4 h6 (
44... Nxc6 $17 45. Bb5 h6) 45. g5 $1 {[%cal Rg5h6]} Nd5+ 46. Kf3 hxg5 47. hxg5
f5 48. Bb5 e5 49. Ba4 e4+ 50. Kf2 Ne7 51. Bb3 Nxc6 52. Kg3 $4 {Blunder. Bg8
was best.} (52. Bg8) (52. Kg2 $15) 52... Nd8 $1 $19 {[%cal Rd8e6]} 53. Ba4 {
intending Be8.} Ke7 54. Bb5 (54. Bb3 {keeps fighting.}) 54... Ne6 55. Kh4 Nc7
56. Bc4 Ne6 57. Bb5 $2 (57. Bd5 {was called for.}) 57... f4 $1 58. exf4 Nxf4
59. Kg3 {[#]} Ne6 $4 {Blunder. Nd3 was best.} (59... Nd3 $1) (59... Nd3 $1 $19
{Strongly threatening ...Ke6.} 60. Kg2 Ke6) 60. Bc6 $11 {The position is equal.
} e3 61. Be4 Nxg5 62. Bxg6 Kf6 63. Bd3 Ke5 64. Kg2 Kd4 65. Ba6 Kc3 66. Kf1 Kd2
67. Bb5 Ne4 68. Ba6 Ng3+ (68... Nc5 $5 69. Be2 $8 Nd7 $11) 69. Kg2 Ne2 70. Kf3
Nd4+ 71. Ke4 Nc2 72. Kf3 Nd4+ 73. Ke4 Ne6 {( -> ...Nc5+)} 74. Kf3 (74. Bf1 {
seems wilder.} Nf8 75. Kf3 Ng6 76. Ke4 Nh4 77. Bb5) 74... Ng5+ 75. Kf4 Nh3+ 76.
Kf3 Nf2 {White must now prevent ...Nd3.} 77. Bf1 Nd3 78. Ke4 e2 79. Bxe2 $1 {
Precisão Chessbase: Brancas 75% Pretas 81%. Precisão Lichess.org: Brancas
95% Pretas 94%. Precisão Chess,com: Brancas 95.1% Pretas 95.8%.} 1/2-1/2

[Event "Scherer Chess Master 2024"]
[Site "Joaçaba-SC"]
[Date "2024.05.06"]
[Round "6.3"]
[White "Perdomo, Leandro"]
[Black "Quintiliano, Renato R."]
[Result "1/2-1/2"]
[ECO "E24"]
[WhiteElo "2378"]
[BlackElo "2487"]
[Annotator "Stockfish 16.1"]
[PlyCount "71"]
[EventDate "2024.??.??"]
[EventCountry "BRA"]

{[%evp 13,71,-12,-11,-13,-17,-26,-17,-21,-24,-15,36,35,38,48,55,31,29,-33,-31,
-31,-28,-30,-32,-32,-32,-37,-39,-52,-42,-43,-27,-56,-23,-28,-32,-38,-31,-33,0,
0,0,0,0,-2,-1,-6,-14,-10,-12,-10,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3.
Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. f3 Nc6 7. e4 d6 8. Ne2 b6 9. Bg5 h6 10. Bh4
Na5 11. Nc1 Ba6 12. Nb3 Bxc4 ({Reject} 12... Nxc4 13. Nd2 $16) 13. Nxa5 Bxf1
14. Rxf1 $146 {[#] Nc6 is the strong threat.} ({RR} 14. dxc5 Ba6 ({RR} 14...
dxc5 15. Rxf1 bxa5 16. Qxd8+ Rxd8 17. Rb1 O-O) 15. Nc6 Qd7 16. Qxd6 bxc5 17.
Rd1 Rc8 18. Qg3 Nh5 19. Rxd7 Nxg3 20. Re7+ Kf8 21. Bxg3 Rxc6 22. Rxa7 Kg8 23.
Kf2 f6 24. Rd1 Kh7 25. Rdd7 Rg8 26. e5 f5 27. Rd6 Bb5 28. a4 {1-0 (28) Merry,A
(2269)-Jedynak,R (2453) Douglas 2014 CBM 162 Extra [L'Ami,A]}) ({RR} 14. Nb7
Qd7 15. Nxd6+ Qxd6 16. Kxf1 Nd7 17. Bf2 O-O 18. g3 f5 19. Kg2 fxe4 20. fxe4
cxd4 21. cxd4 Rac8 22. Qd3 Ne5 23. Qe2 Ng4 24. Bg1 h5 25. Qd3 Qc7 26. Ra2 Qf7
27. Qe2 Rc3 28. Rd2 h4 {Berdayes Ason,D (2480)-Diermair,A (2452) Barcelona ESP
2022 0-1 (35)}) 14... bxa5 15. Qa4+ (15. dxc5 $11 dxc5 16. Ke2) 15... Qd7 $15
16. Qxa5 Rb8 17. Kf2 Rb5 18. Qa6 O-O 19. Bxf6 gxf6 20. a4 Rb2+ 21. Kg1 Rfb8 22.
Rad1 R8b6 23. Qc4 cxd4 24. Qxd4 e5 25. Qe3 Qxa4 26. Qxh6 {The position is
equal.} Qc2 {[%csl Gb2][%cal Rc2g2] [#]} 27. Qh3 Qxc3 28. Qg4+ Kf8 29. Rc1 $132
{[%mdl 2048] White is not holding back} Rc2 30. Rxc2 Qxc2 $11 {[%mdl 4096]
Endgame KQR-KQR} 31. h4 Rb1 (31... a5 {is more complex.} 32. Kh2 Ke7 33. h5 Qd2
34. Qc8 Rb2) 32. Rxb1 Qxb1+ 33. Kh2 $1 a5 34. Qc8+ Kg7 35. Qg4+ Kf8 36. Qc8+ {
Precisão Chessbase: Brancas 91% Pretas 84%. Precisão Lichess.org: Brancas
99% Pretas 99%. Precisão Chess,com: Brancas 98.6% Pretas 98.4%..} 1/2-1/2

[Event "Scherer Chess Master 2024"]
[Site "Joaçaba-SC"]
[Date "2024.05.06"]
[Round "6.4"]
[White "Delgado Ramirez, Neuris"]
[Black "Cubas, Jose Fernando"]
[Result "1/2-1/2"]
[ECO "C01"]
[WhiteElo "2483"]
[BlackElo "2419"]
[Annotator "Stockfish 16.1"]
[PlyCount "45"]
[EventDate "2024.??.??"]
[EventCountry "BRA"]

{[%evp 16,45,0,-6,0,0,0,0,0,0,0,-34,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,307,
-59]} 1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nf3 Nf6 5. c4 Bb4+ 6. Nc3 O-O 7. Be2
dxc4 8. Bxc4 Bg4 9. O-O Bxf3 10. Qxf3 Qxd4 11. Qxb7 {[%mdl 64] [#] Double
Attack} Qxc4 {The position is equal.} 12. Qxa8 Bd6 $1 {And now ...Nc6 would
win.} 13. Qxa7 {Be3 is the strong threat.} Bxh2+ {[%mdl 64] Deflection} (13...
Nc6 $5 14. Qa4 $8 Bxh2+ 15. Kxh2 Qxf1 $14) 14. Kxh2 Qxf1 15. f3 Qe1 16. Qxc7
Qh4+ 17. Kg1 Qe1+ 18. Kh2 Qh4+ 19. Kg1 Qe1+ 20. Kh2 Nh5 $146 21. Rb1 Qh4+ 22.
Kg1 {Black must now prevent Be3.} Ng3 $2 {[%mdl 8192] [#]} (22... Qd4+ $11 {
and Black is okay.} 23. Kh2 Qh4+ 24. Kg1 Qe1+ 25. Kh2 Qh4+) 23. Ra1 $2 {
. Precisão Chessbase: Brancas 91% Pretas 84%. Precisão Lichess.org: Brancas
98% Pretas 99%. Precisão Chess,com: Brancas 90.9% Pretas 92.9%.} (23. Be3) ({
Weaker is} 23. Bf4 Nf5 $16) (23. Be3 $18) 1/2-1/2

[Event "Scherer Chess Master 2024"]
[Site "Joaçaba-SC"]
[Date "2024.05.06"]
[Round "6.5"]
[White "Bachmann, Axel"]
[Black "Fier, Alexandr"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "2578"]
[BlackElo "2574"]
[Annotator "Stockfish 16.1"]
[PlyCount "66"]
[EventDate "2024.??.??"]
[EventCountry "BRA"]

{[%evp 12,66,-2,-2,73,22,22,32,31,25,26,25,25,-31,-3,-17,43,22,28,28,28,31,40,
23,26,9,21,20,32,-4,12,-2,-8,-2,-2,-5,-1,-1,-1,0,0,-5,-3,-138,-143,-473,-473,
-450,-406,-536,-528,-651,-646,-652,-647,-660,-651]} 1. e4 c5 2. Nc3 Nc6 3. f4
e6 4. Nf3 d5 5. Bb5 Nge7 6. exd5 exd5 7. Qe2 f6 $6 {Inaccuracy. Bg4 was best.}
(7... Bg4 8. Bxc6+ bxc6 9. b3 Bxf3 10. Qxf3 Nf5 11. Bb2 Bd6 12. O-O-O) (7...
Bg4 $11 {remains equal.}) 8. Bxc6+ $6 {Inaccuracy. d4 was best.} (8. d4 c4 9.
b3 Kf7 10. O-O Nf5 11. Nxd5 $1 Be6 $1 12. Nxf6 gxf6) (8. d4 $5) 8... bxc6 9. b3
Kf7 {White is slightly better.} 10. O-O Nf5 ({RR} 10... h5 11. Qf2 Nf5 12. d3
Bd6 13. Na4 d4 14. Nb2 Be6 15. Bd2 Qd7 16. Rae1 g6 17. Nh4 Bd5 18. Nc4 Bc7 19.
c3 Rag8 20. cxd4 cxd4 21. Bb4 Re8 22. Nxf5 gxf5 23. Qxd4 Rhg8 24. g3 h4 25. Kf2
{Gerbelli Neto,E (2114)-Indjic,A (2601) chess.com INT 2023 0-1 (36)}) ({RR} 
10... h5 11. Qf2 Nf5 12. d3 Bd6 13. Na4 d4 14. Nb2 Be6 15. Bd2 Qd7 16. Rae1 g6
17. Nh4 Bd5 18. Nc4 Bc7 19. c3 Rag8 20. cxd4 cxd4 21. Bb4 Re8 22. Nxf5 gxf5 23.
Qxd4 Rhg8 24. g3 h4 25. Kf2 {Gerbelli Neto,E (2114)-Indjic,A (2601) chess.com
INT 2023 0-1 (36)}) 11. Ba3 Nd4 12. Qd1 $146 (12. Nxd4 $11 cxd4 13. Bxf8) ({RR
} 12. Nxd4 cxd4 13. Bxf8 Rxf8 14. Na4 Bf5 15. Qh5+ Bg6 16. Qg4 Kg8 17. f5 Bf7
18. Qxd4 Re8 19. Rae1 Rxe1 20. Rxe1 Qd7 21. Qf4 Re8 22. Rxe8+ Qxe8 23. Kf2 Qe5
24. Qxe5 fxe5 25. Nc5 Be8 26. g4 g6 {Mazibuko,K (1808)-Govindasamy,N (2087)
Durban 2017 1/2-1/2 (68)}) ({RR} 12. Nxd4 cxd4 13. Bxf8 Rxf8 14. Na4 Bf5 15.
Qh5+ Bg6 16. Qg4 Kg8 17. f5 Bf7 18. Qxd4 Re8 19. Rae1 Rxe1 20. Rxe1 Qd7 21. Qf4
Re8 22. Rxe8+ Qxe8 23. Kf2 Qe5 24. Qxe5 fxe5 25. Nc5 Be8 26. g4 g6 {Mazibuko,K
(1808)-Govindasamy,N (2087) Durban 2017 1/2-1/2 (68)}) 12... Bf5 13. d3 Nb5 $6
{Inaccuracy. h5 was best.} (13... h5 14. h3) ({Black should try} 13... h5 $11)
14. Bb2 $6 {Inaccuracy. Nxb5 was best.} (14. Nxb5 cxb5 15. Nh4 Qd7 $1 16. h3 h5
17. Re1 Re8 18. Rxe8 Kxe8 19. Qe2+ Kf7) 14... Nxc3 15. Bxc3 d4 16. Bd2 Qd7 17.
Nh4 Bg4 18. Qc1 Re8 19. h3 Be2 20. Rf2 f5 21. Qa3 {[#]} c4 $1 $36 {[%mdl 2560]
Black has good play.} 22. Bb4 (22. bxc4 Bxa3) 22... cxd3 23. cxd3 Re3 24. Bc5
Bxc5 25. Qxc5 g6 26. Rc1 Rhe8 27. Rc4 $2 {Mistake. Nf3 was best.} (27. Nf3 Bxf3
$1) (27. Nf3 $11 Bxf3 28. Rxf3) 27... Qd8 $1 $17 {[%cal Rd8h4]} (27... Bxd3 28.
Rxd4 Qe7 29. Qxe7+ R8xe7 30. Nf3 $14) 28. Rxe2 $4 {Blunder. Qxa7+ was best.} (
28. Qxa7+ {[#]} Kg8 $1) (28. Qxa7+ $17 {is more resistant.} Kg8 29. Nxg6 (29.
Nf3 $2 Bxf3 30. Rxd4 Re1+ 31. Kh2 Bd5 $19) 29... hxg6 30. Rxd4) 28... Qxh4 $19
({Weaker is} 28... Rxe2 29. Nf3 $17) 29. Rxe3 dxe3 $17 {KQR-KQR} 30. Ra4 {[#]}
a5 $1 {[%mdl 512] Black is clearly winning.} 31. Rd4 $6 {Inaccuracy. Rxa5 was
best. intending Rd7+.} (31. Rxa5 Qf2+ 32. Kh2 Qxf4+ 33. g3 Qf2+ 34. Kh1 Qxg3
35. Ra7+ {[#]} Kf6 $1 36. Qxc6+ Re6) 31... Re7 {( -> ...e2)} 32. Qc4+ Kg7 {
Hoping for ...e2.} 33. Qc3 Kh6 {. Precisão Chessbase: Brancas 50% Pretas 85%.
Precisão Lichess.org: Brancas 86% Pretas 96%. Precisão Chess,com: Brancas 87.
6% Pretas 96.5%.} 0-1

[Event "Scherer Chess Master 2024"]
[Site "Joaçaba-SC"]
[Date "2024.05.07"]
[Round "7.1"]
[White "Fier, Alexandr"]
[Black "Do Valle Cardoso, Lucas"]
[Result "1-0"]
[ECO "E60"]
[WhiteElo "2574"]
[BlackElo "2367"]
[Annotator "Stockfish 16.1"]
[PlyCount "65"]
[EventDate "2024.??.??"]
[EventCountry "BRA"]

{[%evp 10,64,43,35,35,23,37,31,41,39,48,37,48,36,48,47,51,48,56,16,15,13,22,19,
39,39,39,39,156,148,202,193,331,331,478,474,476,476,472,459,547,540,542,544,
657,642,642,622,610,602,920,865,29997,29998,29998,29999,29999]} 1. d4 Nf6 2. c4
g6 3. f3 Bg7 4. e4 d6 5. Ne2 O-O 6. Be3 c5 7. d5 e6 8. Nec3 exd5 {White is
slightly better.} 9. cxd5 Nbd7 10. Be2 ({RR} 10. Nd2 Ne5 11. Be2 h6 12. O-O g5
13. a4 a6 14. Qc2 Rb8 15. a5 b5 16. axb6 Rxb6 17. b3 Qe7 18. Rfe1 Nh5 19. Nc4
Rb4 20. Bd2 Nf4 21. Bf1 f5 22. exf5 Bxf5 23. Ne4 Nh3+ 24. Kh1 Nf2+ {Shimanov,A
(2578)-Duda,J (2732) chess.com INT 2024 0-1 (35)}) 10... a6 11. a4 $1 {[%cal
Ba2a4,Ba4a5][%mdl 32]} Ne8 $146 ({RR} 11... Rb8 12. O-O Ne8 13. Na3 f5 14. exf5
gxf5 15. Qd2 Ne5 16. Rab1 Qh4 17. Kh1 f4 18. Bf2 Qh6 19. b4 Rf5 20. Ne4 Rh5 21.
Bg1 Bf5 22. bxc5 dxc5 23. Rbd1 b6 24. d6 Rd8 25. Nc4 Nf7 26. g4 {Zubov,A (2606)
-Mihajlov,S (2356) Fornebu 2016 1-0 (33)}) ({RR} 11... h5 12. O-O Ne5 13. h3
Re8 14. Nd2 Rb8 15. Qc2 Qc7 16. f4 Ned7 17. a5 b5 18. axb6 Nxb6 19. Bf2 Nfxd5
20. exd5 Bxc3 21. Qxc3 Rxe2 22. Rae1 Rxe1 23. Rxe1 Bf5 24. g4 hxg4 25. hxg4
Nxd5 26. Qf3 {Hnydiuk,A (2345)-Mahdavi,R (2302) chess.com INT 2023 0-1 (39)}) (
{RR} 11... Nh5 12. O-O f5 13. exf5 Re8 14. Bf2 gxf5 15. g3 Qg5 16. Kh1 Qh6 17.
Rg1 Ne5 18. a5 f4 19. g4 Ng3+ 20. Bxg3 fxg3 21. Rxg3 Ng6 22. Ne4 Be5 23. g5 Qh4
24. Nf6+ Bxf6 25. gxf6 Qxf6 26. Nc3 {Antonsen,M (2447)-Ochsner,B (2332)
Fredericia 2016 0-1 (64)}) 12. O-O f5 13. Qd2 Qf6 14. a5 $6 {Inaccuracy. exf5
was best.} (14. exf5 gxf5) 14... f4 15. Bf2 g5 16. Na4 Ne5 17. Nb6 Rb8 18. Na3
h5 $6 {Inaccuracy. g4 was best.} (18... g4 19. fxg4 Bxg4 20. Nac4 f3 21. Bxf3
Nxf3+ 22. gxf3 Qxf3 23. Qe3 Bh3 {[%csl Gh3][%cal Rf3g2]} 24. Qxf3) (18... g4
$14) 19. Nac4 $16 Nxc4 20. Nxc4 ({Don't do} 20. Bxc4 $6 g4 $16) 20... Nc7 $6 {
[#] Inaccuracy. Bd7 was best.} (20... Bd7 21. e5) (20... Bd7 $142 21. e5 dxe5)
21. e5 $1 $18 {[%mdl 512]} Qf7 $6 {Inaccuracy. dxe5 was best.} (21... dxe5 22.
d6 Ne6 23. d7 Bxd7 24. Qxd7 Rfd8 25. Qa4 e4 26. fxe4 g4 27. Kh1) (21... Qh6
$142 22. Rae1 (22. Nxd6 Bxe5 23. Ne4 Rd8 $16) (22. exd6 Nb5 $18) 22... Nb5) 22.
Nxd6 Qd7 23. Bxc5 Bxe5 24. Nc4 Re8 25. Nxe5 Rxe5 26. Bc4 Ne6 27. Rae1 Rxe1 28.
Rxe1 Nxc5 29. d6+ Kf8 30. Qd4 {[%cal Rd4h8]} Qg7 $4 {[#] Checkmate is now
unavoidable. Ne6 was best.} (30... Ne6 31. Rxe6 Qxe6 32. Bxe6 Bxe6 33. Qf6+ Bf7
34. d7 Ra8 35. d8=Q+ Rxd8 36. Qxd8+) 31. Re8+ $1 {[%mdl 576] Deflection. White
mates.} Kxe8 32. Qxg7 {[%csl Gd6][%cal Rg7e7]} Be6 33. Qe7# {Precisão
Chessbase: Brancas 95% Pretas 52%. Precisão Lichess.org: Brancas 98% Pretas
89%. Precisão Chess,com: Brancas 97.8% Pretas 80.8%.} 1-0

[Event "Scherer Chess Master 2024"]
[Site "Joaçaba-SC"]
[Date "2024.05.07"]
[Round "7.2"]
[White "Cubas, Jose Fernando"]
[Black "Bachmann, Axel"]
[Result "1/2-1/2"]
[ECO "C42"]
[WhiteElo "2419"]
[BlackElo "2578"]
[Annotator "Stockfish 16.1"]
[PlyCount "39"]
[EventDate "2024.??.??"]
[EventCountry "BRA"]

{[%evp 11,39,17,15,7,10,11,15,16,17,11,10,-1,0,1,6,3,5,2,5,5,3,5,8,8,5,0,7,0,3,
0]} 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Qe2 Qe7 6. d3 Nf6 {The
position is equal.} 7. Be3 Nc6 ({RR} 7... g6 8. Nc3 Bg7 9. O-O-O O-O 10. h3 Nc6
11. g4 Nb4 12. Bd4 Qxe2 13. Bxe2 Be6 14. a3 Nc6 15. Be3 Rae8 16. Rhe1 Nd5 17.
Nxd5 Bxd5 18. c4 Be6 19. d4 Bc8 20. d5 Ne5 21. Nd4 a6 22. Bf1 {Vishnu,P (2518)
-Gelfand,B (2673) St Petersburg RUS 2018 1/2-1/2 (55)}) 8. Nc3 d5 ({RR} 8...
Bg4 9. h3 Bh5 10. g4 Bg6 11. g5 Nh5 12. Bg2 O-O-O 13. Nh4 Qe5 14. Qg4+ Kb8 15.
Bf3 d5 16. d4 Qe6 17. O-O-O Qxg4 18. hxg4 Ng3 19. fxg3 Bd6 20. Bf4 Bb4 21. Nxd5
Rhe8 22. Nxg6 hxg6 23. Nxb4 {Gosh,C (2026)-Al Marzouqi,A (1829) chess.com INT
2023 1-0 (65)}) 9. O-O-O $146 ({RR} 9. d4 Bf5 10. O-O-O O-O-O 11. Qe1 Nb4 12.
a3 Nxc2 13. Qe2 Nxe3 14. fxe3 g6 15. Qf2 Ng4 16. Qe1 Nxe3 17. Rd2 Bh6 18. Rf2
Nxf1+ 19. Kd1 Ne3+ 20. Kc1 Nxg2+ 21. Nd2 Nxe1 22. Re2 Nd3+ 23. Kb1 Qf6 {
Schreer,M-Larem,P (1935) Wiesbaden 2012 0-1}) 9... Bf5 10. h3 O-O-O {[#]
aiming for ...d4.} 11. g4 (11. d4 {is interesting.} h6 12. a3 Ne4 13. Nxe4 Qxe4
14. h4) 11... d4 12. Nxd4 Nxd4 13. Bxd4 Rxd4 14. gxf5 Qxe2 15. Nxe2 Rd5 16. Ng3
Rd4 17. Ne2 Rd5 18. Ng3 Rd4 19. Ne2 Rd5 20. Ng3 {Precisão Chessbase: Brancas
100% Pretas 100%. Precisão Lichess.org: Brancas 99% Pretas 99%. Precisão
Chess,com: Brancas 98.8% Pretas 99.1%.} 1/2-1/2

[Event "Scherer Chess Master 2024"]
[Site "Joaçaba-SC"]
[Date "2024.05.07"]
[Round "7.3"]
[White "Quintiliano, Renato R."]
[Black "Delgado Ramirez, Neuris"]
[Result "1-0"]
[ECO "E00"]
[WhiteElo "2487"]
[BlackElo "2483"]
[Annotator "Stockfish 16.1"]
[PlyCount "148"]
[EventDate "2024.??.??"]
[EventCountry "BRA"]

{[%evp 17,148,11,8,-4,24,18,45,50,72,66,66,64,60,60,64,58,93,59,146,146,146,
137,144,141,129,124,136,149,169,160,361,360,364,361,363,366,362,362,365,358,
382,380,378,382,377,379,373,374,362,357,372,370,377,378,383,377,373,370,373,
367,360,369,379,369,371,374,414,414,411,362,394,392,383,393,383,372,375,382,
398,395,433,342,341,346,355,339,347,348,393,389,398,385,384,298,351,339,342,
339,356,347,392,392,378,376,467,458,452,342,416,393,602,512,575,567,988,864,
909,907,504,516,636,592,1166,1054,970,831,1023,946,945,946,863,799,696]} 1. d4
Nf6 2. c4 e6 3. g3 Bb4+ 4. Nd2 d5 5. Bg2 O-O 6. Ngf3 b6 7. O-O Bb7 8. a3 Be7 9.
cxd5 exd5 10. b4 Nbd7 ({RR} 10... a5 11. b5 c6 12. bxc6 Nxc6 13. Bb2 b5 14. e3
a4 15. Qb1 Qb6 16. Rc1 Rfc8 17. Ne5 h6 18. Bc3 Rc7 19. Qb2 Rac8 20. Bf1 Ba6 21.
Nxc6 Rxc6 22. Nf3 Ne4 23. Bb4 Bxb4 24. axb4 f6 25. Rc5 {So,W (2780)-Vidit,S 
(2718) chess.com INT 2018 1-0 (48)}) 11. Bb2 ({RR} 11. Ne5 a5 12. b5 Nxe5 13.
dxe5 Nd7 14. Nf3 a4 15. h4 Re8 16. Bh3 d4 17. e6 Nc5 18. exf7+ Kxf7 19. Bg2 Kg8
20. Nxd4 Bxg2 21. Kxg2 Bf6 22. Be3 Nb3 23. Nxb3 Qxd1 24. Rfxd1 axb3 25. Rab1 b2
{Mayank,C (2383)-Iniyan,P (2500) Dhaka BAN 2024 1/2-1/2 (45)}) 11... a6 $146 ({
RR} 11... c5 12. bxc5 bxc5 13. dxc5 Nxc5 14. Nd4 Nfe4 15. Nxe4 dxe4 16. Nf5 Bf6
17. Qxd8 Rfxd8 18. Bxf6 gxf6 19. Rac1 Nb3 20. Rb1 Bc8 21. Ne7+ Kf8 22. Nc6 Be6
23. Nxd8 Rxd8 24. Rfd1 Rxd1+ 25. Rxd1 f5 26. f3 {Han,Y (2413)-Avazkhonov,A 
(1538) chess.com INT 2023 1-0 (40)}) ({RR} 11... Re8 12. Ne5 a5 13. b5 Nxe5 14.
dxe5 Nd7 15. Nc4 Nc5 16. Ne3 Ne4 17. Nf5 Bc5 18. e6 Rxe6 19. Nxg7 Nxf2 20. Rxf2
Rf6 21. Bd4 Rxf2 22. Bxf2 Kxg7 23. Bxc5 bxc5 24. Qd2 f6 25. Rf1 Qd7 {1/2-1/2 
(25) Nemeth,Z (2246)-Baskin,R (2423) Dublin IRL 2023}) ({RR} 11... c5 12. bxc5
bxc5 13. Ne5 Rb8 14. Ndf3 c4 15. Qc2 Bd6 16. Bc3 h6 17. Bb4 Qe7 18. Bxd6 Qxd6
19. Rfb1 Ba8 20. Qa4 a6 21. e3 Rfd8 22. Rb4 Rxb4 23. Qxb4 Qxb4 24. axb4 Bb7 25.
Kf1 Nb6 26. Ke1 {Ciorgovean,I (2305)-Arutinian,D (2549) chess.com INT 2021 0-1
(44)}) 12. Ne5 {White is slightly better.} c5 13. Nxd7 Nxd7 14. dxc5 bxc5 15.
Nb3 cxb4 16. axb4 Rb8 17. Na5 Nf6 $6 {Inaccuracy. Bf6 was best.} (17... Bf6 18.
Nxb7 Rxb7 19. Bxd5 Rb5 20. Rb1 Bxb2 21. Rxb2 Qf6 22. Rd2 Nb6 23. Ba2) ({
Better is} 17... Bf6 $14) 18. Be5 $16 Bd6 19. Nxb7 Rxb7 20. Bxf6 ({But not} 20.
Bxd5 $6 Rb6 $14) 20... Qxf6 21. Rxa6 Rxb4 22. Bxd5 {Threatens to win with Rxd6!
} Rd4 23. Qb3 Rb4 $2 {[#] Mistake. Qe7 was best.} (23... Qe7 24. Qa2) (23... g6
$16 {was necessary.} 24. Rb6 Rd2) 24. Bxf7+ $1 $18 {[%mdl 512]} Kh8 (24... Qxf7
25. Qxf7+) 25. Qxb4 Bxb4 26. Rxf6 gxf6 {[%mdl 4096] Endgame KRB-KRB} 27. Rb1
Rb8 28. Rd1 Kg7 29. Rd7 Kf8 30. Bc4 Be7 31. Bd3 h6 32. Kg2 Rd8 33. Ra7 Rd5 34.
Ra8+ Rd8 35. Ra4 Rd5 36. h4 Rc5 37. Rg4 Kf7 38. Kf3 Bf8 39. Ra4 Rc7 40. Bc4+
Kg7 41. Bd5 Kh8 42. Ra6 Kg7 43. Ra4 Rd7 44. Rg4+ Kh7 45. Bg8+ Kh8 46. Be6 Rd8
$6 {Inaccuracy. Rg7 was best.} (46... Rg7 47. Rf4 Re7 48. Bc4 Bg7 49. Kg4 Re5
50. Rd4 Bf8 51. f4 h5+ 52. Kf3) 47. Rc4 Re8 48. Rc6 Kg7 49. Bf5 Re7 50. Bd3 Re5
51. Kg4 Rc5 52. Ra6 Rc7 53. f4 Bb4 54. Ra8 Bd6 55. Kf5 Bb4 $6 {Inaccuracy. h5
was best.} (55... h5 56. Ke4 Bb4 57. Kf3 Be1 58. Rb8 Re7 59. g4 hxg4+ 60. Kxg4
Bd2 61. h5) 56. Rb8 Be1 57. Rb1 Bf2 58. Kg4 Bc5 59. Bc4 Bf2 60. Bd5 Rd7 61. e4
Bd4 62. Kf5 Re7 63. g4 Ba7 (63... Rd7 $142 64. Rc1 Bf2) 64. Rb3 {White is
clearly winning.} Bf2 65. g5 hxg5 66. hxg5 fxg5 67. Kxg5 Kf8 $6 {Inaccuracy.
Bd4 was best.} (67... Bd4 68. Kf5 Ra7 69. Rg3+ Kf8 70. e5 Ra6 71. Rb3 Bf2 72.
Rb8+ Ke7 73. Rb2) 68. f5 Rg7+ 69. Kf4 Bh4 70. Rb8+ Ke7 71. Rb7+ Kf8 72. Rxg7
Kxg7 73. e5 Bd8 74. Bc4 Be7 {Precisão Chessbase: Brancas 91% Pretas 57%.
Precisão Lichess.org: Brancas 97% Pretas 94%. Precisão Chess,com: Brancas 93.
0% Pretas 89.2%.} 1-0

[Event "Scherer Chess Master 2024"]
[Site "Joaçaba-SC"]
[Date "2024.05.07"]
[Round "7.4"]
[White "Di Berardino, Diego Rafael"]
[Black "Perdomo, Leandro"]
[Result "1/2-1/2"]
[ECO "C55"]
[WhiteElo "2484"]
[BlackElo "2378"]
[Annotator "Stockfish 16.1"]
[PlyCount "52"]
[EventDate "2024.??.??"]
[EventCountry "BRA"]

{[%evp 10,52,36,34,50,45,59,47,77,75,85,29,30,33,46,44,60,57,63,42,42,20,27,0,
0,0,12,14,15,17,16,-20,-20,-27,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3.
Bc4 Nf6 4. d3 h6 5. O-O d6 6. a4 g5 7. Nc3 Bg7 8. Re1 Bg4 {White is slightly
better.} 9. h3 Be6 10. Bxe6 (10. a5 $16) 10... fxe6 $11 11. d4 exd4 12. Nxd4
Qd7 $146 ({RR} 12... Nxd4 13. Qxd4 O-O 14. Qb4 b6 15. a5 Qd7 16. axb6 axb6 17.
Rxa8 Rxa8 18. h4 gxh4 19. e5 dxe5 20. Qxh4 Ra1 21. Qg3 e4 22. Qe3 Qc6 23. Rd1
b5 24. Qd4 Qc4 25. Qd8+ Kh7 26. Bf4 Rxd1+ 27. Qxd1 {Degraeve,R (2428)-Harsha,B
(2599) Cappelle la Grande FRA 2023 1/2-1/2 (58)}) 13. Nxc6 Qxc6 14. e5 dxe5 15.
Qe2 O-O 16. Qb5 Qxb5 17. axb5 Nd5 18. Ne4 a6 19. bxa6 Nb4 20. Ra4 Nxc2 21. Rd1
{[#] Threatens to win with Rc4.} Rxa6 (21... bxa6 {feels hotter.} 22. Rc4 Nd4
23. Rxc7 Rfb8 24. g4 a5) 22. Rxa6 {The position is equal.} bxa6 23. Rd7 Rf7 24.
Rd8+ Rf8 25. Rd7 Rf7 26. Rd8+ Rf8 {Precisão Chessbase: Brancas 71% Pretas 82%.
Precisão Lichess.org: Brancas 96% Pretas 97%. Precisão Chess,com: Brancas 97.
2% Pretas 97.7%.} 1/2-1/2

[Event "Scherer Chess Master 2024"]
[Site "Joaçaba-SC"]
[Date "2024.05.07"]
[Round "7.5"]
[White "Flores Quillas, Diego Saul Rodri"]
[Black "Librelato, Kathie Goulart"]
[Result "1-0"]
[ECO "C80"]
[WhiteElo "2431"]
[BlackElo "2165"]
[Annotator "Stockfish 16.1"]
[PlyCount "91"]
[EventDate "2024.??.??"]
[EventCountry "BRA"]

{[%evp 18,91,23,23,28,9,11,14,18,10,80,77,66,96,107,107,144,119,117,107,140,
142,149,149,161,143,143,153,193,135,174,151,151,84,183,146,223,239,237,236,230,
218,203,200,266,267,256,235,295,278,320,320,326,309,301,310,342,338,346,352,
377,351,406,396,436,427,524,523,607,559,603,599,676,677,883,875]} 1. e4 e5 2.
Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Nbd2
{[%cal Bb1d2,Bd2f3,Bf3d4][%mdl 32]} Nc5 10. c3 d4 11. Nxd4 (11. Bxe6 {is more
complex.} Nxe6 12. cxd4 Ncxd4 13. a4 Bb4 14. Nb3) 11... Nxd4 12. cxd4 Qxd4 {
The position is equal.} 13. Bxe6 fxe6 $6 {Inaccuracy. Nxe6 was best.} (13...
Nxe6 14. Nb3 Qxe5 15. f4 Qf5 16. Qf3 O-O-O 17. Qa8+ Kd7 18. Qf3) (13... Nxe6
$11 14. Nb3 Qxe5) 14. Nf3 $16 Qxd1 $146 ({RR} 14... Qd5 15. Be3 Nd3 16. a4 Bb4
17. axb5 O-O 18. bxa6 c5 19. Qe2 Rfd8 20. Bd2 Qb3 21. Bxb4 Qxb4 22. Rfd1 c4 23.
Ne1 Qb5 24. a7 Rd5 25. Nxd3 cxd3 26. Qe4 Qb6 27. Rxd3 Rxa7 28. Rxa7 Qxa7 29. g3
{Saw,G (2279)-Yuan,Y (2010) Canberra 2009 1/2-1/2 (45)}) 15. Rxd1 Be7 16. Be3 {
Black must now prevent Rac1.} Rd8 $6 {Inaccuracy. Rc8 was best.} (16... Rc8 17.
Nd4 Na4 18. Rab1 c5 19. Nxe6 Kf7 20. Ng5+ $1 Bxg5 21. Bxg5 h6 22. Bd2) 17.
Rxd8+ (17. Rd3 $4 {[%mdl 8192] 17.Nd4 1.71} Rd5 $2 ({Better is} 17... Nxd3 $19
18. b3 Rd5) 18. Rxd5) 17... Kxd8 18. Rc1 Nd7 19. Nd4 $1 {[%cal Rd4e6]} Nxe5 20.
Nxe6+ Kd7 21. Nxg7 ({Don't take} 21. Nxc7 $6 Nc4 $14) 21... Rf8 22. Rd1+ Bd6
23. Nh5 (23. h3 $18) 23... Nc4 24. Bd4 Kc8 25. b3 $6 {Inaccuracy. Bg7 was best.
} (25. Bg7) ({White should play} 25. Bg7 {Hoping for Rxd6.} Rf7 26. b3) 25...
Ne5 $6 {Inaccuracy. Rd8 was best.} (25... Rd8) (25... Rd8 $16) 26. Ng3 Rd8 $2 {
[#] Mistake. Ng4 was best.} (26... Ng4 27. f3 Rd8 28. fxg4 Bxg3 29. hxg3 c5 30.
Rc1 Rxd4 31. Rxc5+ Kd8 32. Rf5) (26... Ng4 $16 {keeps fighting.} 27. f3 Nf6 28.
Bxf6 Rxf6) 27. Bxe5 $1 $18 Bxe5 28. Rxd8+ Kxd8 {[%mdl 4096] Endgame KB-KN} 29.
Ne4 Ke7 30. Kf1 h6 31. Ke2 Ke6 32. g3 Kd5 {[#]} 33. Kd3 $1 c5 {intending ...
c4+.} 34. Nc3+ Ke6 35. Nd1 Kd5 36. Ne3+ Ke6 37. Ke4 Bd4 38. f4 h5 39. h3 Bg7
40. g4 hxg4 41. hxg4 {White is clearly winning.} Bb2 42. g5 Ba1 43. f5+ Kf7 44.
Kd5 Bd4 45. Ng4 {And now b4! would win.} Kg7 {[#]} 46. b4 $1 {[%mdl 512]
Precisão Chessbase: Brancas 81% Pretas 36%. Precisão Lichess.org: Brancas
97% Pretas 93%. Precisão Chess,com: Brancas 93.1% Pretas 85.0%.} 1-0

[Event "Scherer Chess Master 2024"]
[Site "Joaçaba-SC"]
[Date "2024.05.08"]
[Round "8.1"]
[White "Do Valle Cardoso, Lucas"]
[Black "Librelato, Kathie Goulart"]
[Result "1-0"]
[ECO "A01"]
[WhiteElo "2367"]
[BlackElo "2165"]
[Annotator "Stockfish 16.1"]
[PlyCount "51"]
[EventDate "2024.??.??"]
[EventCountry "BRA"]

{[%evp 9,51,108,100,105,105,88,122,130,123,126,100,100,158,163,175,175,205,213,
284,284,228,263,279,284,283,300,307,300,304,286,330,297,324,319,342,325,385,
353,349,342,597,600,29997,29998]} 1. b3 e5 2. Bb2 Nc6 3. e3 e4 $6 {Inaccuracy.
Nf6 was best.} (3... Nf6 4. Nf3 e4 5. Nd4 Bc5 6. Nxc6 dxc6 7. d4 exd3 8. cxd3)
4. c4 ({RR} 4. Bb5 Qg5 5. Bf1 d5 6. d4 Nf6 7. c4 Bb4+ 8. Nc3 O-O 9. a3 Bxc3+
10. Bxc3 Bg4 11. Ne2 Qg6 12. Qd2 Rfe8 13. Nf4 Qh6 14. cxd5 Ne7 15. Bc4 Rad8 16.
h3 Nexd5 17. Nxd5 Nxd5 18. Bb2 c6 {Nakamura,H (2736)-Naroditsky,D (2621) chess.
com INT 2020 1/2-1/2 (75)}) 4... Nf6 5. Nc3 $146 ({RR} 5. d3 exd3 6. Bxd3 d5 7.
cxd5 Qxd5 8. Nf3 Bg4 9. Nc3 Qh5 10. Ne4 Bb4+ 11. Ke2 O-O-O 12. Nxf6 gxf6 13.
Bxf6 Ne5 14. Bxe5 Qxe5 15. Qc2 Rxd3 16. Qxd3 Qb2+ 17. Kf1 Qxa1+ 18. Ke2 Qxh1
19. Qc4 Bxf3+ {Seletsky,G (2204)-Kilic,E (2452) chess.com INT 2024 0-1}) 5...
d5 6. cxd5 Nb4 7. Qb1 Bf5 8. Bb5+ {White is better.} c6 9. dxc6 bxc6 10. Bc4
Qd7 {[#]} (10... Bd6 $142) 11. Nge2 $1 $16 Rd8 12. O-O Bd6 13. Ng3 Bxg3 $6 {
Inaccuracy. O-O was best.} (13... O-O 14. Ncxe4 Nxe4 15. Nxe4 Bc7 16. Qc1 Bxe4
17. Qc3 {[%csl Gb2][%cal Rc3g7]} Qg4 {[%csl Ge4][%cal Rg4g2]} 18. f3 Bxf3 19.
Rxf3) 14. fxg3 O-O 15. Na4 Bg6 16. Bd4 Rfe8 17. Qb2 Nbd5 18. Rac1 {[%cal Ba1c1,
Bc1c5,Bc5a5,Ba5h5][%mdl 32]} h5 19. Be2 Re7 20. Rc5 Ne8 21. Ra5 Nb6 22. Bxh5
Rb8 23. Qa3 Bxh5 24. Rxh5 Nc7 $2 {[#] Mistake. Nxa4 was best.} (24... Nxa4 25.
Qxa4 Rb5 26. Rxb5 cxb5 27. Qa5 f6 28. g4 Nd6 29. h3 Kh7 30. Qb4) (24... Nd5 {
might work better.} 25. Nc3 Nxc3) 25. Bxg7 $1 $18 {[%mdl 512] Threatening mate
with Bf6.} Nc4 $4 {[#] Checkmate is now unavoidable. Ne8 was best.} (25... Ne8
26. Bd4 {[%csl Gd4][%cal Rh5h8]} f6 27. Nc5 Qxd4 28. exd4 Ng7 29. Rh4 Rbe8 30.
Qc1 f5 31. b4) (25... Kxg7 26. Qb2+) 26. Bf6 $1 {[%mdl 512] Precisão
Chessbase: Brancas 77% Pretas 39%. Precisão Lichess.org: Brancas 98% Pretas
87%. Precisão Chess.com: Brancas 95.7% Pretas 73.7%.} 1-0

[Event "Scherer Chess Master 2024"]
[Site "Joaçaba-SC"]
[Date "2024.05.08"]
[Round "8.2"]
[White "Perdomo, Leandro"]
[Black "Flores Quillas, Diego Saul Rodri"]
[Result "0-1"]
[ECO "E24"]
[WhiteElo "2378"]
[BlackElo "2431"]
[Annotator "Stockfish 16.1"]
[PlyCount "142"]
[EventDate "2024.??.??"]
[EventCountry "BRA"]

{[%evp 13,142,0,8,-29,-26,-40,7,5,4,8,4,2,3,-1,0,1,26,-41,-40,-41,-39,-133,
-132,-133,-134,-139,-82,-83,-80,-82,-78,-209,-196,-202,-198,-209,-189,-193,
-190,-197,-191,-196,-194,-195,-191,-187,-182,-187,-183,-224,-208,-235,-235,
-235,-235,-278,-272,-285,-251,-264,-264,-310,-276,-304,-239,-234,-237,-232,
-232,-280,-184,-228,-211,-203,-209,-204,-181,-180,-16,-16,-12,-15,0,-136,-116,
-118,-22,-24,0,0,0,0,0,0,0,0,0,0,15,7,51,-3,-1,0,0,0,7,3,7,4,1,-7,-9,-26,-25,
-35,-36,-36,-41,-470,-470,-876,-869,-29958,-29959,-29959,-29960,-29982,-29983,
-850,-681]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 Nc6 {[%cal Bb8c6,
Bc6a5,Ba5b3][%mdl 32]} 6. f3 b6 7. e4 Ba6 8. Bd3 Na5 9. Qe2 Nb3 10. Rb1 {
The position is equal.} Nxc1 11. Rxc1 Qe7 12. Nh3 d6 13. O-O e5 14. f4 Nd7 $146
({RR} 14... Bc8 15. c5 Bxh3 16. cxd6 cxd6 17. gxh3 O-O 18. Kh1 Rac8 19. Rg1
exf4 20. Qf3 Rfe8 21. Rce1 Qe6 22. c4 Nd7 23. Qxf4 Qf6 24. Qe3 g6 25. Ref1 Qg7
26. h4 Nf8 27. Be2 Ne6 28. Rd1 Qf6 29. h5 {Ano Tafalla,S (2105)-Morros Faura,R
(2258) Escaldes AND 2019 0-1 (33)}) ({RR} 14... O-O 15. Ng5 Rae8 16. Rce1 Bc8
17. Nf3 Bg4 18. h3 Bxf3 19. Qxf3 Nd7 20. Kh1 c5 21. Qf2 f6 22. g4 g5 23. dxe5
gxf4 24. exd6 Qxd6 25. Bc2 Ne5 26. Qxf4 Qe6 27. Qe3 Nxc4 28. Qe2 Ne5 29. Rf5 {
David,A (2436)-Filip,L (2391) Bucharest ROU 2022 0-1 (45)}) ({RR} 14... O-O 15.
Ng5 Rae8 16. fxe5 dxe5 17. Nf3 exd4 18. cxd4 Nxe4 19. Ne5 Ng5 20. h4 Qd6 21.
Qg4 Bc8 22. Bf5 h5 23. Qf4 Ne6 24. Bxe6 Rxe6 25. c5 bxc5 26. Rxc5 Rf6 27. Qe4
Bb7 28. Qe3 Rxf1+ 29. Kxf1 {Boyer,M (2318)-Bauer,C (2647) Cappelle la Grande
FRA 2019 0-1 (40)}) 15. f5 $6 {Inaccuracy. Nf2 was best.} (15. Nf2 O-O 16. Ng4
Rae8 17. Rce1 exd4 18. cxd4 f5 19. Nf2 fxe4 20. Nxe4 d5) (15. Rf3 $11) 15...
Bb7 $15 16. Bc2 O-O-O 17. c5 $6 {Inaccuracy. Nf2 was best.} (17. Nf2) (17. Nf2
$15) 17... dxc5 $17 (17... bxc5 $6 18. d5 $11) 18. d5 Nf6 19. Ba4 Rdg8 $6 {
Inaccuracy. Kb8 was best.} (19... Kb8 20. Rce1 g6 21. fxg6 hxg6 22. Qf3 (22.
Ng5 $1 $15) 22... Rd6 23. c4 Bc8 24. Nf2 Nh5 25. Nd3) (19... Kb8 $142 20. c4
Rc8) 20. Bc6 Kb8 21. Nf2 h5 22. Nd3 $4 {Blunder. a4 was best.} (22. a4 a5 $1) (
22. a4 $17) 22... c4 23. Nb4 Qc5+ $1 24. Kh1 h4 {And now ...Nh5 would win.} 25.
Rf3 Nh5 26. Qe3 Qxe3 27. Rxe3 a5 28. Bxb7 Kxb7 (28... axb4 29. Ba6 $15) 29. Nc6
Re8 30. Rb1 {Threatening Nxa5+.} Ka6 31. Rf3 Rh6 32. a4 Nf6 33. Re3 Nd7 34. Kg1
$6 {Inaccuracy. Rb5 was best.} (34. Rb5 g6 35. fxg6 Rxg6 36. Kg1 Reg8 37. Rb2
Rf6 38. Rb1 Rf4 39. Ne7 Rgg4) 34... Nc5 35. Ra1 Rh5 36. Kf2 Rg5 37. g3 $6 {
Inaccuracy. Kf3 was best.} (37. Kf3 f6 38. Ree1 g6 39. g4 gxf5 40. exf5 e4+ 41.
Ke3 Rxg4 42. Nd4 Reg8) 37... hxg3+ 38. hxg3 g6 39. f6 Rh5 40. Kg2 Reh8 41. Kf3
Kb7 $6 {Inaccuracy. Nd7 was best.} (41... Nd7 42. Rd1 Nxf6 43. d6 Kb7 44. d7
Kxc6 45. d8=R Rxd8 46. Rxd8 Nd7 47. Re8) 42. Rb1 $6 {Inaccuracy. Ree1 was best.
White wants to play Nxa5+.} (42. Ree1 Kc8 43. Na7+ Kd7 44. Nb5 Nb7 45. Re2 R5h6
46. Kg4 Re8 47. Rd1 Rh5) 42... Kc8 (42... Nxa4 43. Nxa5+ Kb8 44. Nc6+ Kb7 45.
Na5+ Kb8 46. Nxc4 $11) 43. Na7+ Kd7 44. Nb5 Nb7 45. Re2 Nd6 $2 {Mistake. Nc5
was best.} (45... Nc5 46. Na3 Nxa4 47. Rc2 Nc5 48. Nxc4 Kc8 49. d6 {[#]} Rh1 $1
50. Rb5 Nd7 51. dxc7) ({Better is} 45... Nc5 $19 46. Ra1 Rg5) 46. Nxd6 $11 Kxd6
{[%mdl 4096] Endgame KRR-KRR} (46... cxd6 $6 47. Rxb6 Rc8 48. Kg2 $16) 47. Kg4
Rh1 48. Rbb2 $2 {Mistake. Rxh1 was best.} (48. Rxh1 Rxh1 49. Kg5 Rh5+ 50. Kg4
Kc5 51. Rd2 Rh1 52. Kg5 Rh3 53. Kg4 Rh1) (48. Rxh1 $11 {remains equal.} Rxh1
49. Kg5) 48... Rf1 49. Rf2 Rxf2 $2 {Mistake. Re1 was best.} (49... Re1 50. Rbe2
Reh1 51. Rb2 R8h6 52. Kg5 R6h3 {[%cal Rh3g3]} 53. Kg4 Rh8 54. Rbc2 g5 55. Rb2)
({Black should try} 49... Rfh1 $17 {...Re1 is the strong threat.} 50. Rfc2 Rf1)
50. Rxf2 $17 {[#] KR-KR} b5 $1 {[%mdl 512]} 51. axb5 Kc5 52. Ra2 Kb6 53. Kg5
Rh5+ 54. Kg4 Rh1 55. Kg5 Rf1 56. Rd2 Rf3 57. d6 cxd6 $1 ({Avoid the trap} 57...
Rxg3+ $2 58. Kh4 $18) 58. Rxd6+ Kxb5 59. Rd5+ Ka4 60. Rxe5 {With the idea g4.}
Rxc3 61. Re7 {Strongly threatening g4.} Rxg3+ 62. Kh6 Re3 63. Kg7 g5 64. Kxf7
g4 65. Kg8 $1 {Black must now prevent f7.} g3 66. f7 $4 {Blunder. Rg7 was best.
} (66. Rg7) (66. Rg7 $15 Rf3 67. e5) 66... Rf3 $19 {Threatens to win with ...
g2.} ({Weaker is} 66... g2 67. f8=Q $19) 67. Rc7 $2 {Mistake. Re5 was best.} (
67. Re5 Rxf7 68. Kxf7 c3 69. Kf6 g2 70. Rg5 c2 71. Rxg2 c1=Q 72. Rg4 Qc4) (67.
f8=B $142 Rxf8+ {[%mdl 64] Promotion} 68. Kxf8) 67... g2 68. Rxc4+ $2 {
Checkmate is now unavoidable. f8=Q was best.} (68. f8=Q Rxf8+ 69. Kxf8 g1=Q 70.
Rxc4+ Kb3 71. Rc7 Qb6 72. Rd7 a4 73. Kf7 Qb5) 68... Kb3 69. Rc1 Rf1 70. f8=Q $4
{Checkmate is now unavoidable. Rxf1 was best.} (70. Rxf1 gxf1=Q 71. f8=Q Qxf8+
72. Kxf8 {[#]} Kc4 $1 73. Kf7 Kd4 74. Ke6 Kxe4 75. Kd6 Kd4 (75... a4 $142 76.
Kc5 a3 77. Kd6 a2 78. Kd7 a1=Q 79. Kd6 Qc3 80. Ke7 Qe5+ 81. Kf7 Kf5 82. Kg8 Kf6
83. Kh8 Kf7+ 84. Kh7 Qh5#)) 70... g1=Q+ 71. Kh7 Qh2+ {Precisão Chessbase:
Brancas 65% Pretas 74%. Precisão Lichess.org: Brancas 88% Pretas 94%.
Precisão Chess.com: Brancas 86.5% Pretas 91.6%.} ({Stronger than} 71... Rxf8
72. Rxg1 Rf4 73. Rb1+ Kc3 74. Ra1 $11) 0-1

[Event "Scherer Chess Master 2024"]
[Site "Joaçaba-SC"]
[Date "2024.05.08"]
[Round "8.3"]
[White "Delgado Ramirez, Neuris"]
[Black "Di Berardino, Diego Rafael"]
[Result "1-0"]
[ECO "C07"]
[WhiteElo "2483"]
[BlackElo "2484"]
[Annotator "Stockfish 16.1"]
[PlyCount "54"]
[EventDate "2024.??.??"]
[EventCountry "BRA"]

{[%evp 9,54,18,19,15,14,22,17,16,21,13,23,16,27,3,8,3,3,0,14,9,4,4,128,136,131,
121,128,128,128,123,123,123,193,206,203,194,214,214,211,187,328,322,331,319,
478,477,29997]} 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 Qxd5 5. dxc5 Nf6 6. Ngf3
Qxc5 7. Bd3 Nbd7 8. O-O {The position is equal.} Be7 9. Re1 ({RR} 9. a4 Qc7 10.
Nb3 O-O 11. a5 Ne5 12. Nxe5 Qxe5 13. Re1 Qc7 14. Bg5 Bd7 15. Nd4 Rad8 16. Qf3
Nd5 17. Bxe7 Nxe7 18. Qg3 Qxg3 19. hxg3 Nc6 20. Nxc6 Bxc6 21. Re5 {1/2-1/2 (21)
Adams,M (2745)-Nisipeanu,L (2687) Germany 2016}) 9... O-O 10. Ne4 Qc7 11. Bg5
$146 ({RR} 11. Nxf6+ Nxf6 12. Ne5 Bd6 13. Bf4 b6 14. Qf3 Bb7 15. Qh3 g6 16.
Rad1 Rad8 17. Ng4 Nxg4 18. Bxd6 Rxd6 19. Qxg4 Rfd8 20. Qg3 Qc5 21. h3 Rd5 22.
Qe3 Qxe3 23. Rxe3 Ba6 24. Kf1 Bxd3+ 25. Rexd3 Rxd3 {Wei,Y (2649)-Jianu,V (2588)
Bazna 2014 1/2-1/2}) ({RR} 11. Nxf6+ Nxf6 12. Ne5 Bd6 13. Bf4 Nd5 14. Bg3 Nb4
15. Bxh7+ Kxh7 16. Re4 Kg8 17. Qh5 f5 18. Rc4 Nc6 19. Ng6 Rf6 20. Bxd6 Qxd6 21.
Rd1 Qxd1+ 22. Qxd1 Rxg6 23. Rc3 e5 24. Qh5 Kf7 25. Rg3 Ne7 {Alexakis,D (2462)
-Tsaknakis,Z (2279) Athens GRE 2023 1/2-1/2 (74)}) ({RR} 11. Nxf6+ Nxf6 12. Ne5
b6 13. Qf3 Bb7 14. Qh3 Rfd8 15. Bg5 h6 16. Nxf7 Rxd3 17. Nxh6+ gxh6 18. Qxe6+
Kf8 19. Bxh6+ Ke8 20. cxd3 {1-0 (20) Antal,G (2572)-Sebenik,M (2498) Tornelo
INT 2021}) ({RR} 11. Nxf6+ Nxf6 12. Ne5 Bd6 13. Qe2 b6 14. Bg5 Bxe5 15. Qxe5
Qxe5 16. Rxe5 Nd7 17. Re2 Bb7 18. c3 h6 19. Bh4 Nc5 20. Bc2 g5 21. Bg3 Rfd8 22.
c4 Nd3 23. Bxd3 Rxd3 24. h4 Kg7 25. hxg5 hxg5 {Antal,G (2562)-Zentai,P (2284)
Ajka HUN 2021 1/2-1/2 (59)}) 11... b6 12. Bh4 Bb7 13. Bg3 Qc6 14. Nd4 Qd5 15.
Nb5 Nc5 $2 {Mistake. Nxe4 was best.} (15... Nxe4 16. Bxe4 Qxb5 17. Bxb7 Rad8
18. Bc7 Nc5 19. Bxd8 Rxd8 20. Qf3 Qxb2 21. Bc6) (15... Nxe4 $11 {keeps the
balance.} 16. Bxe4 Qxb5 17. Bxb7 Rad8) 16. Nc7 $16 {[%mdl 64] Double Attack}
Qd8 {[%cal Rc5e4]} 17. Nxc5 Bxc5 18. Nxa8 Qxa8 19. Be5 {Threatens to win with
Bxf6.} Bxg2 {And now ...Bh3 would win.} 20. Bxf6 $1 gxf6 $6 {Inaccuracy. Bf3
was best.} (20... Bf3 21. Qc1 gxf6 22. Qf4 Qd5 23. Be4 Bxe4 24. Qxe4 Rd8 (24...
Qh5 $16) 25. Qxd5 Rxd5 26. Rad1) (20... Bf3 $16 21. Qd2 gxf6) 21. Qg4+ $18 (21.
Qh5 f5 $11) 21... Kh8 {[#]} 22. Qh4 $1 {[%csl Gd3][%cal Rh4h7][%mdl 64] Double
Attack} ({And not} 22. Qxg2 Rg8 $17) 22... f5 {...Rg8 is the strong threat.}
23. Qf6+ Kg8 {[#]} 24. b4 $1 $40 {[%mdl 704] Deflection. White attacks with
force.} Bxb4 $6 {Inaccuracy. Bh3 was best.} (24... Bh3 {24...Bd6 1.62} 25. Be4)
(24... Bd6 {was called for.}) 25. Re3 {[%cal Re3g3]} Bf3 {[#]} 26. Bxf5 $1 {
[%mdl 512]} Bh5 $6 {Inaccuracy. exf5 was best.} (26... exf5 27. Qxf5 Qd5 28.
Qxf3 Qxf3 29. Rxf3 Rd8 30. Rd3 Rc8 31. c3 Rxc3 32. Rxc3) (26... exf5 {is a
better defense.} 27. Qxf5 Qd5 28. Qxf3 (28. Rxf3 Qxf5 29. Rxf5 Rd8 $18) 28...
Qxf3 29. Rxf3 Rd8) 27. Rh3 Bc5 $4 {Checkmate is now unavoidable. Bg6 was best.
Precisão Chessbase: Brancas 92% Pretas62%. Precisão Lichess.org: Brancas 99%
Pretas 86%. Precisão Chess.com: Brancas 98.0% Pretas 78.6%.} (27... Bg6 28.
Bxg6 fxg6 29. Qxe6+ Kh8 30. Qd7 {[%csl Gh3][%cal Rd7h7]} h5 31. Qd4+ Kg8 32.
Qxb4 Qc8 33. Qb3+) (27... Bg6 $18) 1-0

[Event "Scherer Chess Master 2024"]
[Site "Joaçaba-SC"]
[Date "2024.05.08"]
[Round "8.4"]
[White "Bachmann, Axel"]
[Black "Quintiliano, Renato R."]
[Result "1/2-1/2"]
[ECO "B23"]
[WhiteElo "2578"]
[BlackElo "2487"]
[Annotator "Stockfish 16.1"]
[PlyCount "56"]
[EventDate "2024.??.??"]
[EventCountry "BRA"]

{[%evp 9,56,-3,-3,-2,-2,-16,-3,-47,-26,18,15,-29,-29,-29,-29,-35,-22,-24,-1,
-17,-3,-21,20,-32,-32,-35,-32,-35,-32,-36,-37,-132,-148,-169,-141,-187,-164,
-163,-3,-100,-15,-22,-25,-42,-50,-39,-39,-38,0]} 1. e4 c5 2. Nc3 d6 3. f4 g6 4.
Nf3 Bg7 5. Bb5+ Bd7 6. Bc4 Nc6 7. d3 e6 8. f5 {The position is equal.} gxf5 ({
RR} 8... Nf6 9. Bf4 e5 10. Bg5 gxf5 11. exf5 h6 12. Bxf6 Bxf6 13. O-O Nd4 14.
Nxd4 cxd4 15. Qh5 Rh7 16. Nd5 Bc6 17. Rf3 Bxd5 18. Bxd5 Qb6 19. Rg3 Ke7 20. Bb3
Qc6 21. a4 d5 22. Re1 Re8 23. Rg4 {Tari,A (2650)-Giri,A (2773) chess.com INT
2022 0-1 (40)}) 9. exf5 d5 10. Bb3 ({RR} 10. Bb5 Qa5 11. O-O O-O-O 12. Bxc6
bxc6 13. Ng5 Nh6 14. f6 Bf8 15. Qh5 Be8 16. Bf4 Qb4 17. a3 Qd4+ 18. Kh1 Qxf6
19. Rae1 Qg6 20. Qe2 Rg8 21. d4 c4 22. b3 Bd6 23. Bxd6 Rxd6 24. Nf3 Nf5 {
Asadli,V (2562)-Gokerkan,C (2523) Samarkand UZB 2023 0-1 (38)}) 10... Nge7 11.
fxe6 $146 ({RR} 11. Bg5 f6 12. fxe6 Bxe6 13. Be3 b6 14. O-O Qd7 15. Ne2 O-O-O
16. Nf4 Bf7 17. Bf2 Bh6 18. Ne2 Rhg8 19. Ng3 Bf4 20. a4 Na5 21. Ba2 Nec6 22. c3
Kb7 23. Rb1 Bd6 24. Qd2 Rg4 25. Rfe1 Rdg8 {Perunovic,M (2622)-Duda,J (2658)
Berlin 2015 0-1 (64)}) 11... fxe6 12. O-O O-O 13. Ne2 Na5 {With the idea ...c4.
} 14. c3 Nxb3 15. axb3 Qe8 16. Bf4 {[#]} e5 $1 $36 {[%cal Re5f4][%mdl 2560]
Black has the initiative.} 17. Nxe5 Rxf4 $1 {[%mdl 64] Remove Defender} 18.
Nxf4 Bxe5 19. Qf3 {And now Rae1 would win.} Qf7 20. Qe3 $6 {Inaccuracy. Rae1
was best.} (20. Rae1 Bxf4 21. Qxf4 Qxf4 22. Rxf4 Ng6 23. Rf6 Kg7 24. Ref1 Be8
25. R6f5 Rd8) (20. Rae1 $15 Bxf4 21. Qxf4 Qxf4 22. Rxf4) 20... Bd6 $17 21. Rf2
Re8 22. Qd2 $6 {Inaccuracy. Qf3 was best.} (22. Qf3) 22... a6 $6 {Inaccuracy.
d4 was best.} (22... d4) 23. Raf1 Kh8 $2 {Mistake. d4 was best.} (23... d4 $1
24. Rf3 Nf5 $1 25. Nd5 {[#]} Qg6 $1 26. Qf2 {[#]} Rf8 $1 27. h3 Qg7 28. c4 h5
29. b4) (23... d4 $1 $19 {Threatening ...Qf5.} 24. Nh3 Qh5 25. Qg5+ Qg6) 24. g3
$2 {Mistake. Nh3 was best.} (24. Nh3 Qh5 25. Qg5 Qxg5 $1 26. Nxg5 Kg8 $1 27.
Rf7 h6 28. Rh7 $1 hxg5 29. Rff7 Bc6) (24. Nh3 $11 Nf5 25. Qg5) 24... Nf5 $2 {
Mistake. Ng8 was best.} (24... Ng8 25. d4 Bb5 26. Nxd5 Qxd5 27. c4 Bxc4 28.
bxc4 Qxc4 29. Rf7 Re7 30. Rxe7) (24... Ng8 $17 25. Qd1 Nh6) 25. Ng2 $1 $11 {
[%cal Rg2h4]} Qh5 $1 {Threatens to win with ...Nxg3!} 26. Nf4 Qf7 {Black is
slightly better.} 27. Ng2 $1 {[%cal Rg2h4] Nh4 is the strong threat.} Qh5 $1
28. Nf4 Qf7 {Precisão Chessbase: Brancas 69% Pretas 59%. Precisão Lichess.
org: Brancas 90% Pretas 89%. Precisão Chess.com: Brancas 90.8% Pretas 91.4%.}
1/2-1/2

[Event "Scherer Chess Master 2024"]
[Site "Joaçaba-SC"]
[Date "2024.05.08"]
[Round "8.5"]
[White "Fier, Alexandr"]
[Black "Cubas, Jose Fernando"]
[Result "1-0"]
[ECO "E94"]
[WhiteElo "2574"]
[BlackElo "2419"]
[Annotator "Stockfish 16.1"]
[PlyCount "65"]
[EventDate "2024.??.??"]
[EventCountry "BRA"]

{[%evp 25,65,26,55,29,38,39,35,5,19,8,49,63,90,77,83,57,49,45,65,58,63,54,140,
146,162,161,169,145,202,194,208,203,295,295,439,424,395,407,473,470,501,503]} 
1. d4 {Prusikin,M} Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Nf3 e5 7. O-O
Na6 8. Re1 ({RR} 8. Be3 Ng4 ({RR} 8... c6 9. dxe5 dxe5 10. Qxd8 Rxd8 11. h3 Nh5
12. Rfd1 Re8 13. a3 h6 14. b4 Nf4 15. Bf1 Nc7 16. Kh2 Nfe6 17. c5 Kh7 18. Bc4
f5 19. Rd6 f4 20. Bc1 Nd8 21. Bb2 Nce6 22. Rad1 Nf7 23. R6d2) 9. Bg5 Qe8 10.
dxe5 dxe5 11. h3 h6 12. Bd2 Nf6 13. Be3 Qe7 14. Nd5 Qd8 15. Qc2) 8... c6 9. Bf1
exd4 10. Nxd4 Ng4 11. h3 Qb6 12. hxg4 Qxd4 13. g5 Nc5 14. Bf4 (14. Qc2 {
keeps more tension.} a5 15. Be3 Qe5 16. Rad1 a4 17. f4) ({RR} 14. Qc2 Qe5 15.
Be3 Qe7 16. Rad1 b6 17. b4 Ne6 18. b5 Bb7 19. bxc6 Bxc6 20. Nd5 Qd8 21. f4 Nc5
22. Bxc5 bxc5 23. e5 dxe5 24. Nf6+ Bxf6 25. Rxd8 {1/2-1/2 (25) Bacrot,E (2654)
-Nataf,I (2559) Istanbul 2003}) 14... Qxd1 $1 15. Raxd1 Be5 16. Be3 $146 {
White is slightly better.} ({RR} 16. g3 Re8 17. Rxd6 Bxd6 18. Bxd6 Ne6 19. f4
b6 20. e5 Nd4 21. Bg2 Bb7 22. Ne4 Kg7 23. Kf2 c5 24. Nf6 Bxg2 25. Nxe8+ Rxe8
26. Kxg2 Nf5 27. Bc7 Nd4 28. Kf2 h6 29. gxh6+ Kxh6 30. Rh1+ Kg7 {Rashkovsky,N 
(2520)-Knaak,R (2535) Sochi (Russia) 1980 1-0 (42)}) ({RR} 16. Bc1 Ne6 17. Ne2
f5 18. f4 Bg7 19. exf5 Rxf5 20. Rxd6 Bf8 21. Rd3 Nc5 22. Rdd1 Rf7 23. Ng3 Ne6
24. Ne4 Bb4 25. Bd2 Bxd2 26. Rxd2 Rxf4 27. c5 Kg7 28. Nd6 Bd7 29. Nf5+ Kh8 30.
Nh6 Nxc5 {Giannoulakis,L (2319)-Koutlas,N (2337) Thessaloniki GRE 2021 1/2-1/2
(51)}) ({RR} 16. Bc1 Re8 17. Nb1 ({RR} 17. f3) 17... Ne6 18. g3 Nd4 19. Bg2 Bg4
20. Rd2 a6 ({RR} 20... Bg7) 21. Na3 Bg7 22. Re3 ({RR} 22. Nc2 Nf3+ 23. Bxf3
Bxf3 24. Rd3 Bxe4 25. Rde3 d5 26. f3) 22... c5 23. b3 h6 24. gxh6 Bxh6 25. f4
g5 26. Rf2 Bd7 27. Nb1 Bc6 28. Nc3 b5 29. Nd5 Bxd5 30. cxd5 f5 {Prusikin,M 
(2509)-Ekstroem,R (2473) Switzerland 2003 EXT 2004 [Prusikin,M] 1-0 (47)}) ({RR
} 16. Bc1 Re8 17. f3 Be6 18. Kf2 Rad8 19. Be3 Bc8 20. g3 Rd7 21. Bh3 Rde7 22.
Bxc8 Rxc8 23. Rd2 Rce8 24. Red1 a5 25. Ne2 Re6 26. Nd4 R6e7 27. Ne2 Re6 28. Kg2
R6e7 29. b3 Re6 30. Nf4 R6e7 {Sieglen,J (2340)-Ottens,S Bad Godesberg 1991 1-0
(49)}) 16... Be6 17. f3 Rfd8 18. Rd2 Kf8 19. Rc1 a5 20. Ne2 a4 $1 21. Nd4 Bd7
22. Kf2 Ke7 23. g3 a3 ({Black should play} 23... f6 $14) 24. b3 $16 Ne6 25.
Nxe6 Bxe6 26. Rcd1 c5 $6 {Inaccuracy. Bc3 was best.} (26... Bc3 27. Rd3 Bb4 28.
Be2 b5 29. cxb5 cxb5 30. g4 Rac8 31. Bd2 Bc5+ 32. Kg2) (26... Bc3 $16) 27. f4
$18 Bc3 {[#]} 28. Rxd6 $3 {[%mdl 512]} Rdc8 (28... Rxd6 29. Bxc5 Ke8 30. Bxd6
$18) (28... Bb4 $142) 29. e5 b5 $6 {Inaccuracy. Ra6 was best.} (29... Ra6 30.
R6d5 Bb4 31. Bg2 Raa8 32. Rd6 Rab8 33. Rh1 b5 34. Bd5 Bxd5 35. Rxd5) (29... Ra6
$142 30. R6d3 Ba5) 30. cxb5 Bxb3 31. R1d3 ({But not} 31. axb3 a2 $18) 31...
Bxa2 {[#] Strongly threatening ...Bb1.} 32. Rxc3 Bb1 {Threatens to win with ...
a2.} 33. Ra6 {Precisão Chessbase: Brancas 79% Pretas 43%. Precisão Lichess.
org: Brancas 98% Pretas 92%. Precisão Chess.com: Brancas 95.7% Pretas 85.9%.}
1-0

[Event "Scherer Chess Master 2024"]
[Site "Joaçaba-SC"]
[Date "2024.05.09"]
[Round "9.1"]
[White "Cubas, Jose Fernando"]
[Black "Do Valle Cardoso, Lucas"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "2419"]
[BlackElo "2367"]
[Annotator "Stockfish 16.1"]
[PlyCount "73"]
[EventDate "2024.??.??"]
[EventCountry "BRA"]

{[%evp 9,73,-7,20,-10,-6,-21,15,-21,-28,-29,-5,-2,37,-29,0,-3,6,-7,24,-1,-2,-2,
56,43,94,37,54,45,66,64,60,66,127,126,122,127,122,100,181,157,165,164,185,178,
177,135,164,154,149,86,92,80,80,80,150,139,141,142,261,261,303,303,451,459,469,
474]} 1. e4 c5 2. Nc3 d6 3. f4 g6 4. Nf3 Bg7 5. Bb5+ Bd7 6. Bc4 Nc6 7. O-O e6
8. d3 {The position is equal.} Nge7 9. Qe1 Nd4 10. Nxd4 cxd4 (10... Bxd4+ {
with more complications.} 11. Kh1 O-O 12. f5 exf5 13. Bf4 b5) 11. Ne2 (11. Nb5
$5 {[%cal Rb5d6]} Qb6 12. Qb4 $11) 11... O-O 12. Bb3 f5 13. Bd2 Kh8 14. Ng3 Nc6
$146 ({RR} 14... Qc7 15. Rc1 e5 16. fxe5 dxe5 17. Bb4 Rae8 18. exf5 Bxf5 19.
Ne4 Bxe4 20. Qxe4 Rxf1+ 21. Rxf1 Nf5 22. g4 Ne3 23. Rf7 Qc8 24. h3 Nxc2 25.
Bxc2 Qxc2 26. Qxb7 Rc8 27. Bc3 Rg8 28. Be1 Qe2 29. Bg3 {Gerbelli Neto,E (2114)
-Mendez Fortes,E (2231) chess.com INT 2023 1/2-1/2 (48)}) 15. Rf2 Qe7 $6 {
Inaccuracy. a5 was best.} (15... a5 16. exf5) 16. Re2 Rae8 $6 {Inaccuracy. Qd8
was best.} (16... Qd8) 17. Qf2 $6 {Inaccuracy. exf5 was best.} (17. exf5 gxf5
18. Bd5 Bh6 19. Nh5 Qf7 20. Bf3 e5 21. Qh4 Re6 22. Bd5 Qe7) 17... Qh4 18. Rae1
e5 19. exf5 gxf5 20. Qf3 Rf6 $6 {Inaccuracy. Bh6 was best.} (20... Bh6) 21. Qh5
Rh6 22. Qxh4 Rxh4 23. Rf1 Ne7 $6 {Inaccuracy. Rf8 was best.} (23... Rf8 24. Bd5
) 24. fxe5 dxe5 25. Bg5 Rg4 26. Bxe7 $1 f4 27. Bb4 fxg3 28. h3 $36 {[%mdl 2048]
White is in control.} Rg5 29. Bd2 Rf5 30. Rxf5 Bxf5 31. Bf4 Bf6 $6 {Inaccuracy.
e4 was best.} (31... e4) 32. Bxg3 {[#] Rf2 is the strong threat.} Kg7 33. Bd5
b5 $2 {Mistake. Bg6 was best.} (33... Bg6) (33... b6 $16 34. a3 Kg6) 34. Bc6
$18 Rc8 35. Bxb5 Rb8 $2 {Mistake. Bg6 was best.} (35... Bg6 36. Ba4 Bh5 37. Re1
Be8 38. Bb3 Rc5 39. Bc4 a5 40. a3 a4 41. b4) (35... Bg6 {keeps fighting.} 36.
Bd7 Rc5) 36. Rxe5 Bg6 {[#]} 37. Re7+ $1 {[%mdl 576] Clearance.   Precisão
Chessbase: Brancas 78% Pretas 44%. Precisão Lichess.org: Brancas 96% Pretas
90%. Precisão Chess.com: Brancas 95.5% Pretas 87.5%..} 1-0

[Event "Scherer Chess Master 2024"]
[Site "Joaçaba-SC"]
[Date "2024.05.09"]
[Round "9.2"]
[White "Quintiliano, Renato R."]
[Black "Fier, Alexandr"]
[Result "0-1"]
[ECO "A46"]
[WhiteElo "2487"]
[BlackElo "2574"]
[Annotator "Stockfish 16.1"]
[PlyCount "122"]
[EventDate "2024.??.??"]
[EventCountry "BRA"]

{[%evp 9,122,47,63,38,48,30,69,71,65,67,80,77,69,64,64,72,69,65,56,23,18,30,27,
31,29,24,26,26,15,25,31,34,43,10,41,39,49,35,40,42,63,60,65,25,76,71,90,52,123,
65,119,1,0,-23,-27,-20,-18,-26,-26,-28,-26,-21,-19,-8,-12,-24,-8,-7,1,-3,28,2,
2,4,4,4,10,-2,4,3,3,2,16,-10,-10,-16,-15,-28,-27,-24,-32,-30,-30,-47,-28,-80,
-28,-33,-29,-28,-31,-78,-56,-508,-508,-371,-423,-217,-248,-574,-574,-570,-561,
-673,-673]} 1. d4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 Nc6 5. O-O Ne4 ({RR} 5... Rb8
6. Bf4 Bd6 7. c3 O-O 8. Nbd2 Bxf4 9. gxf4 Ne7 10. Ne5 Ne8 11. e3 f6 12. Nd3 Nd6
13. Kh1 b6 14. Rg1 Qe8 15. b3 Ba6 16. c4 Bb7 17. Rc1 c6 18. a4 Ndf5 19. c5 Ba6
20. Nb4 {Laveryd,P (2455)-Jepson,C (2487) Sweden 2004 1/2-1/2}) 6. b3 $146 ({RR
} 6. Bf4 Bd6 7. Ne5 Bxe5 8. dxe5 Nc5 9. Be3 Na4 10. b3 Nb6 11. f4 Nd7 12. c4
Ne7 13. cxd5 exd5 14. Bxd5 Nxd5 15. Qxd5 O-O 16. Nc3 c6 17. Qd6 Nb6 18. Ne4 Bf5
19. Qxd8 Rfxd8 20. Nd6 Bh3 {Hofschroer,J (1511)-Linke,H (1749) Pinneberg 2006
0-1 (35)}) ({RR} 6. Nfd2 f5 7. c3 Be7 8. Nf3 Bf6 9. Bf4 O-O 10. Ne5 Ne7 11. f3
Nd6 12. Qc2 g5 13. Bd2 Bxe5 14. dxe5 Nf7 15. f4 g4 16. Be1 Ng6 17. Bf2 b6 18.
c4 c6 19. b4 Bb7 20. c5 Re8 {Palla,I (1514)-De Giorgis,G (1653) Marianske
Lazne 2016 1/2-1/2 (42)}) ({RR} 6. c4 Be7 7. Nc3 O-O 8. Qc2 f5 9. Rd1 Nb4 10.
Qb1 c5 11. Be3 Bf6 12. Qc1 cxd4 13. Bxd4 Bxd4 14. Nxd4 e5 15. Nb3 Qb6 16. c5
Nxc5 17. Nxd5 Nxd5 18. Nxc5 Nf6 19. Qc4+ Kh8 20. Na4 Qe6 {Hrivnak,M (2219)
-Krajnak,J (2186) Slovakia 2007 1-0 (42)}) ({RR} 6. c4 dxc4 7. Qc2 Nd6 8. e4
Nb5 9. d5 exd5 10. exd5 Qxd5 11. Ng5 Qd3 12. Qa4 Nbd4 13. Nc3 Bg4 14. Be4 Ne2+
15. Nxe2 Qxe2 16. Bxc6+ Kd8 17. Bxb7 Rb8 18. Nxf7+ Ke7 19. Bd5 Rd8 20. Bg5# {
1-0 (20) Vazquez Escudero,P-Alonso Centeno,J Valladolid 1986}) 6... a5 7. a3
Be7 8. Bb2 {White is slightly better.} f5 9. c4 a4 10. b4 Bf6 11. Nc3 (11. Qc2
{is interesting.} Bd7 12. Rc1 O-O 13. e3 Be8 14. cxd5 exd5 15. Nc3) 11... Nxc3
12. Bxc3 dxc4 13. Rc1 Ne7 14. Nd2 (14. Ne5 {keeps more tension.} Nd5 15. e4
fxe4 16. Bxe4 g6 17. Qg4) 14... Nd5 15. Nxc4 Nxc3 16. Rxc3 Qxd4 17. Qxd4 Bxd4
18. Rd3 Bf6 19. Rfd1 O-O 20. f4 {[%mdl 1024] White has compensation.} Ra7 21.
Rc1 Be7 22. Ne5 Bd6 23. Nc4 $36 {[%mdl 2048] White has the initiative.} Be7 24.
h4 Re8 25. Bf3 Kf8 26. h5 Ra8 $6 {Inaccuracy. Rd8 was best.} (26... Rd8 27.
Rxd8+ Bxd8 28. Nb6 cxb6 29. Rxc8 Ke7 30. e3 b5 31. Kf2 Ra6 32. Bxb7) 27. Rcd1 (
27. Ne5 $5 {[%cal Rc1c7]}) 27... Rb8 28. Ne5 Bf6 $6 {Inaccuracy. Bd6 was best.}
(28... Bd6 29. Kf2 Rd8 30. e4 fxe4 31. Bxe4 h6 32. Nc4 Ke7 33. Na5 Rd7 34. Kf3)
29. b5 $6 {Inaccuracy. h6 was best.} (29. h6 Kg8 30. hxg7 Kxg7 31. Kf2 Rf8 32.
Rc3 c6 33. Rcd3 Ra8 34. Rd6 Be7) 29... Be7 $6 {Inaccuracy. c6 was best.} (29...
c6) 30. Rc1 $2 {Mistake. h6 was best.} (30. h6 Bd6 31. b6 gxh6 32. e3 Re7 33.
Kf2 Kg7 34. g4 Ra8 35. Rc3 Ra5) ({White should play} 30. h6 $16) 30... Rd8 $11
31. Rdc3 Bd7 32. Rb1 Bd6 33. Rc4 Be8 34. Rxa4 Ra8 35. Rxa8 Rxa8 36. Bxb7 Rxa3
37. Bf3 Ra4 38. Nd3 Rd4 39. Kf1 g5 40. hxg6 hxg6 41. b6 cxb6 42. Rxb6 Ke7 43.
Bc6 Bxc6 44. Rxc6 {[%mdl 4096] Endgame KRB-KRN} g5 {[%cal Rg5f4]} 45. Rb6 Kf6 {
[%cal Rg5f4]} 46. Rb3 gxf4 47. gxf4 Bxf4 48. Rb4 Rxb4 49. Nxb4 {KB-KN} Ke5 50.
Kf2 Ke4 {White must now prevent ...Bd6.} 51. Nc2 Bg5 52. Kg3 Be7 {Hoping for ..
.e5.} 53. Kf2 Bc5+ 54. Kg2 e5 {...f4 is the strong threat.} 55. Kg3 Be3 56. Kg2
$4 {Blunder. Ne1 was best.} (56. Ne1 Bg5 57. Kg2 Ke3 58. Kf1 e4 59. Nc2+ Kf4
60. e3+ Ke5 61. Ke2 Bxe3) (56. Ne1 $15) 56... Bd2 $1 $19 57. Kf2 $6 {[#]
Inaccuracy. Na1 was best.} (57. Na1 Kd5 58. Nb3 Bc3 59. e3 Kc4 60. Nc1 e4 $1
61. Kh3 Bb2 62. Ne2 Be5 $1) 57... Kd5 $1 58. Na3 {[#]} (58. e4+ $142 Kxe4 59.
Ke2) 58... Kc5 $1 59. e4 $2 (59. Kg1 {was the crucial defense.}) 59... f4 {
Black is clearly winning.} 60. Ke2 $4 {Checkmate is now unavoidable. Kf3 was
best.} (60. Kf3 Bb4 61. Nc2 Kc4 62. Ke2 Kb3 63. Kd3 Bc3 64. Na3 Kxa3 65. Kxc3
Ka4) 60... Bb4 61. Nc2 Kc4 {Precisão Chessbase: Brancas 60% Pretas 78%.
Precisão Lichess.org: Brancas 87% Pretas 96%. Precisão Chess.com: Brancas 88.
3% Pretas 95.3%.} 0-1

[Event "Scherer Chess Master 2024"]
[Site "Joaçaba-SC"]
[Date "2024.05.09"]
[Round "9.3"]
[White "Di Berardino, Diego Rafael"]
[Black "Bachmann, Axel"]
[Result "1-0"]
[ECO "E20"]
[WhiteElo "2484"]
[BlackElo "2578"]
[Annotator "Stockfish 16.1"]
[PlyCount "73"]
[EventDate "2024.??.??"]
[EventCountry "BRA"]

{[%evp 13,73,24,21,23,58,57,62,57,77,73,102,91,112,56,150,151,155,121,119,114,
164,76,86,80,125,106,108,88,137,123,245,237,277,278,286,281,275,257,307,135,
255,242,346,346,350,350,350,328,350,326,300,285,356,357,29990,29991,29991,
29992,29992,29993,29995,29995]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 c5 5. d5 d6
6. e4 O-O 7. Nge2 b5 8. Nf4 (8. cxb5 exd5 9. exd5 Bb7 $15) 8... e5 9. Nfe2 bxc4
10. Ng3 {White is slightly better.} Bxc3+ 11. bxc3 Qa5 $146 ({RR} 11... Kh8 12.
Bxc4 Ng8 13. O-O Ne7 14. Be3 Qa5 15. Qd2 Ba6 16. Bxa6 Qxa6 17. Nh5 Nd7 18. f4
exf4 19. Bxf4 f6 20. Qd1 Rf7 21. Qg4 Nf8 22. Bh6 Neg6 23. Bxg7+ Rxg7 24. Nxg7
Kxg7 25. Qf5 Ne5 26. Qxf6+ {Shmeliov,D (2456)-Nestorovic,N (2476) Charlotte
USA 2018 1-0 (36)}) ({RR} 11... Nbd7 12. Bxc4 Qa5 13. Bd2 Ba6 14. Qe2 Bxc4 15.
Qxc4 Nb6 16. Qe2 Qa4 17. O-O Nc4 18. Bg5 Nd7 19. Be7 Rfb8 20. Nf5 Rb2 21. Qe1
Qc2 22. Qg3 g6 23. f4 Qxg2+ 24. Qxg2 Rxg2+ 25. Kxg2 gxf5 26. Rg1 {Trost,E 
(2434)-Salinas Tomas,D (2289) Sant Boi ESP 2023 1/2-1/2 (40)}) ({RR} 11... Nbd7
12. Bxc4 Nb6 13. Be2 Bd7 14. O-O Rb8 15. a4 a5 16. f4 Qe8 17. fxe5 dxe5 18.
Rxf6 gxf6 19. Bh6 Kh8 20. Nh5 Rg8 21. Nxf6 Qe7 22. Nxg8 Rxg8 23. Bf3 Nxa4 24.
Be3 Qe8 25. Qb3 Qb8 26. Qc2 {Dorn,P (1908)-Rajaram,R (2138) Las Vegas USA 2023
1-0 (65)}) 12. Qc2 Ne8 13. Bxc4 Ba6 $6 {Inaccuracy. f5 was best.} (13... f5) (
13... f5 $14) 14. Bxa6 $16 Qxa6 15. c4 Nd7 16. Nf5 g6 17. Ne3 $6 {Inaccuracy.
Ne7+ was best.} (17. Ne7+ Kg7 18. O-O Nef6 19. Bd2 Rfe8 20. Nc6 Ng8 21. Na5
Rab8 22. Rab1 Ne7) (17. Ne7+ $18 Kg7 18. O-O) 17... Ng7 18. g4 Nb6 19. a4 {
[%cal Ba2a4,Ba4a5][%mdl 32]} Rab8 20. O-O Rb7 21. Bd2 f5 $2 {Mistake. Nd7 was
best.} (21... Nd7) (21... Nd7 $16) 22. a5 $18 ({Don't do} 22. gxf5 $6 Nh5 $16)
22... Nc8 23. gxf5 ({Not} 23. exf5 Ne7 $16) 23... gxf5 24. Nxf5 ({Weaker is} 
24. exf5 Ne7 $16) 24... Nxf5 25. exf5 Ne7 26. Bh6 $2 {Mistake. f4 was best.} (
26. f4 Rxf5 27. Kh1 Rb8 28. fxe5 Rxf1+ 29. Rxf1 dxe5 30. Rg1+ Ng6 31. Qf5 Qd6)
(26. f4 $18 {is more deadly.}) 26... Rxf5 $2 {Mistake. Rf7 was best.} (26...
Rf7 27. Kh1) (26... Rf7 $16 {was called for.}) 27. Kh1 {[#] Strongly
threatening Rg1+.} Rf7 (27... Rf6 $142) 28. Rg1+ Kh8 29. Qa4 {White wants to
mate with Qe8+.} Rb8 30. Qd7 {White threatens Qe6 and mate.} Qc8 31. Qxd6 Ng6
32. Rab1 Ra8 33. Rg3 Rf5 $4 {Checkmate is now unavoidable. Qd8 was best.} (
33... Qd8 34. Qe6 Qe8 35. Qg4 Qc8 36. Qe4 Qd8 37. a6 Qf6 38. d6 Rg8 39. Qd5) (
33... Qe8 $18 34. Be3 Rd8 35. Qxc5 Rc8) 34. Rxg6 {White mates.} hxg6 35. Qxg6 {
[%csl Gh6][%cal Rg6g7]} Qd7 $4 {Checkmate is now unavoidable. Qc7 was best.} (
35... Qc7 36. Rg1 Qf7 37. Bg7+ Kg8 38. Qh6 {[%csl Gg7][%cal Rh6h8]} Qh5 39.
Bf6+ Qg5 40. Rxg5+ Rxg5 41. Qxg5+) 36. Rg1 Rf7 37. Qh5 {. Precisão Chessbase:
Brancas 75% Pretas 43%. Precisão Lichess.org: Brancas 95% Pretas 88%.
Precisão Chess.com: Brancas 91.9% Pretas 80.5%.} 1-0

[Event "Scherer Chess Master 2024"]
[Site "Joaçaba-SC"]
[Date "2024.05.09"]
[Round "9.4"]
[White "Flores Quillas, Diego Saul Rodri"]
[Black "Delgado Ramirez, Neuris"]
[Result "1/2-1/2"]
[ECO "B99"]
[WhiteElo "2431"]
[BlackElo "2483"]
[Annotator "Stockfish 16.1"]
[PlyCount "61"]
[EventDate "2024.??.??"]
[EventCountry "BRA"]

{[%evp 24,61,43,40,66,0,0,0,0,0,0,0,0,0,0,0,4,0,15,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6
7. f4 Be7 8. Qf3 Qc7 9. O-O-O Nbd7 10. g4 b5 11. Bxf6 Nxf6 12. g5 Nd7 13. f5
O-O 14. f6 gxf6 {The position is equal.} 15. gxf6 Nxf6 16. e5 (16. Rg1+ Kh8 $17
) 16... dxe5 17. Nc6 $1 {[%cal Rc6e7]} (17. Qxa8 $2 exd4 18. Qg2+ Kh8 $19)
17... Bb7 18. Qg3+ $1 {[%mdl 64] Double Attack} ({But not} 18. Nxe7+ Qxe7 19.
Qg3+ Kh8 $17) 18... Kh8 $1 19. Nxe5 Bd6 $132 {[%mdl 2048] Black puts up
resistance} 20. Rxd6 $1 ({Avoid the trap} 20. Rg1 $2 Rg8 $19) 20... Bxh1 21.
Rd1 {Hoping for Ng6+!} Rac8 {White must now prevent ...Ne4.} 22. Bd3 Bd5 {
Strongly threatening ...Nh5.} 23. Qg5 {[#]} ({Reject} 23. Nxd5 exd5 24. Qf4 {
[#]} Ne4 $1 $17 {[%mdl 512]}) 23... Ne4 $1 {[%cal Re4g5][%mdl 512]} 24. Nxe4 {
White threatens Qf6+ and mate.} f5 25. Nd6 $1 Qxd6 {[#]} 26. Ng6+ $1 {[%mdl
512]} hxg6 27. Qh6+ Kg8 28. Qxg6+ Kh8 29. Qh6+ Kg8 30. Qg6+ $146 ({RR} 30. Rg1+
Kf7 31. Rg7+ Ke8 32. Qh5+ Kd8 33. Qh4+ Ke8 34. Qh5+ {1/2-1/2 (34) Fier,A (2567)
-Delgado Ramirez,N (2614) Gijon ESP 2022}) 30... Kh8 31. Qh6+ {Precisão
Chessbase: Brancas 85% Pretas 100%. Precisão Lichess.org: Brancas 99% Pretas
99%. Precisão Chess.com: Brancas 98.6% Pretas 99.4%.} 1/2-1/2

[Event "Scherer Chess Master 2024"]
[Site "Joaçaba-SC"]
[Date "2024.05.09"]
[Round "9.5"]
[White "Librelato, Kathie Goulart"]
[Black "Perdomo, Leandro"]
[Result "0-1"]
[ECO "C78"]
[WhiteElo "2165"]
[BlackElo "2378"]
[Annotator "Stockfish 16.1"]
[PlyCount "80"]
[EventDate "2024.??.??"]
[EventCountry "BRA"]

{[%evp 12,80,43,41,56,37,42,35,45,37,42,41,42,36,37,20,22,30,51,35,64,64,69,32,
104,23,25,24,43,43,51,-91,-41,-157,-168,-153,-140,-137,-139,-437,-445,-423,
-387,-394,-380,-474,-470,-463,-454,-452,-451,-446,-395,-467,-462,-481,-467,
-509,-483,-536,-536,-653,-646,-660,-635,-709,-683,-606,-682,-683,-683]} 1. e4 {
Marin,M} e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Bc5 7. a4 Rb8 ({
Don't blunder} 7... Nxe4 $2 8. axb5 Nxf2 9. Rxf2 $18) 8. Nxe5 Nxe5 9. d4 Bxd4
$1 {White is slightly better.} ({Much weaker is} 9... Nxe4 $6 10. dxc5 Bb7 11.
axb5 $18) 10. Qxd4 d6 11. f4 Nc6 12. Qc3 $36 {[%mdl 2048] White has good play.}
Ne7 13. Qd3 ({RR} 13. axb5 axb5 14. e5) 13... O-O 14. Nc3 {[%cal Ra4b5]} b4 15.
e5 Bf5 16. Qxa6 Nd7 17. exd6 cxd6 $146 {[#] Inaccuracy. bxc3 was best.
Threatens to win with ...Nc5.} (17... bxc3) ({RR} 17... bxc3 18. dxe7 Qxe7 19.
bxc3 Nc5 20. Qc4 Rfd8 21. Ba2 Bxc2 22. f5 Bd3 23. f6 gxf6 24. Qg4+ Kh8 25. Bh6
Rg8 26. Qd4 Bxf1 27. Rxf1 Rg6 28. Be3 Nxa4 29. Bf2 Nb6 30. Bb1 Rg7 31. Re1 Qd6
32. Bf5 {Leko,P (2739)-Shirov,A (2723) Wijk aan Zee 2010 CBM 135 [Marin,M] 0-1
(64)}) 18. Nd5 $6 {Inaccuracy. Nb5 was best.} (18. Nb5 $1) 18... Nc5 19. Qe2
Nxd5 20. Bxd5 Qf6 {And now ...Qd4+ would win.} 21. Bc6 (21. Qd1 $14 {stays
ahead.}) 21... b3 22. Bb5 (22. c3 $15) 22... bxc2 $17 23. Ra3 Ne6 24. Qf2 d5
25. a5 $2 {[%mdl 8192]} (25. h3 $17) 25... Rxb5 $19 26. a6 Rbb8 27. a7 Ra8 28.
Ra2 d4 29. b4 Qe7 {[%mdl 64] [#] Double Attack} 30. Ra5 Bd3 31. Re1 f5 32. b5
Be4 {Black is clearly winning.} 33. b6 Qb4 34. Ra6 Nc5 35. Ba3 Qb1 36. Qf1 $6 {
Inaccuracy. Bxc5 was best.} (36. Bxc5 c1=Q 37. Bb4 Bb7 38. Ra3 Qxb4 39. Rxc1
Qxa3 40. Rc7 Qa1+ 41. Qf1 Qa6) 36... Nxa6 37. Bxf8 Rxf8 38. Rxb1 cxb1=Q 39.
Qxb1 Bxb1 40. b7 Be4 {. Precisão Chessbase: Brancas 48% Pretas 77%. Precisão
Lichess.org: Brancas 89% Pretas 96%. Precisão Chess.com: Brancas 84.8% Pretas
93.4%.} 0-1

