[Event "U20 Pan-American Chess Championship"]
[Site "Volta Redonda - Rio de Janeir"]
[Date "2023.11.07"]
[Round "3.1"]
[White "Fabian Ricardo Reyes Zavaleta"]
[Black "Ivan Excender Soriano Quispe"]
[Result "0-1"]
[ECO "D30"]
[WhiteElo "2122"]
[BlackElo "2214"]
[Annotator "Stockfish 16"]
[PlyCount "78"]
[EventDate "2023.11.06"]
[EventRounds "9"]
[EventCountry "BRA"]

{[%evp 0,78,20,31,20,16,-1,-17,88,-4,115,9,4,4,117,25,47,41,45,22,15,25,17,4,
15,11,12,20,31,-2,38,10,4,16,32,20,46,28,7,-3,-1,-11,-5,-10,-31,-42,2,-22,-36,
-20,-42,-51,-82,-73,-75,-77,-56,-73,-76,-94,-123,-153,-151,-164,-175,-223,-206,
-210,-153,-139,-200,-211,-224,-242,-211,-261,-254,-403,-473,-508,-448]} 1. d4
d5 2. c4 e6 3. Nf3 a6 4. cxd5 exd5 5. Nc3 Nf6 6. Bg5 Be6 7. e3 Nbd7 8. Bd3 Bd6
9. O-O O-O 10. Qc2 h6 11. Bh4 c5 12. dxc5 Nxc5 13. Rad1 Rc8 14. Qb1 b5 15. a3
Nxd3 16. Qxd3 Be7 17. Nd4 Qd7 18. f4 Qd6 19. Nf5 Bxf5 20. Qxf5 Qe6 21. Qxe6
fxe6 22. f5 g5 23. fxg6 Kg7 24. Ne2 Bc5 25. Nd4 $6 {Inaccuracy. Bxf6+ was best.
} (25. Bxf6+ Rxf6 26. Rxf6 Kxf6 27. Rd3 Be7 28. Nf4 Bd6 29. Kf2 Rc2+ 30. Kf3
Rxb2 31. g7 Kxg7) 25... Bxd4 26. exd4 Ne4 27. Rxf8 Kxf8 28. Be1 Kg7 29. h4 $6 {
Inaccuracy. b3 was best.} (29. b3 Kxg6) 29... Kxg6 30. Bd2 Rc2 31. Bf4 Rxb2 32.
Rc1 h5 33. Rc6 a5 $6 {Inaccuracy. Kf5 was best.} (33... Kf5 34. Bc7 Ra2 35. Rc1
Rxa3 36. Rf1+ Kg6 37. Be5 b4 38. Rf8 Ra1+ 39. Kh2 Ra2 40. Rg8+) 34. Bc7 b4 35.
axb4 axb4 36. Rxe6+ Kf7 37. Re5 $6 {Inaccuracy. Rb6 was best.} (37. Rb6 b3 38.
Bf4 Rb1+ 39. Kh2 b2 40. g3 Nc3 41. Bd6 Na4 42. Rb7+ Ke6 43. Ba3 Rd1) 37... Rc2
38. Bd8 b3 39. Re7+ Kf8 0-1

[Event "U20 Pan-American Chess Championship"]
[Site "Volta Redonda - Rio de Janeir"]
[Date "2023.11.07"]
[Round "3.2"]
[White "Pablo Castro Salgado"]
[Black "Mateus Costamilan Tomiello"]
[Result "1-0"]
[ECO "D37"]
[WhiteElo "2150"]
[BlackElo "2145"]
[Annotator "Stockfish 16"]
[PlyCount "93"]
[EventDate "2023.11.06"]
[EventRounds "9"]
[EventCountry "BRA"]

{[%evp 0,93,20,20,6,6,6,6,13,13,20,13,9,11,31,41,30,45,44,40,33,38,-1,0,3,-25,
21,-19,16,16,33,7,9,-13,-27,-27,-38,-32,-32,-72,-28,-22,4,-28,-27,-19,-17,-28,
-18,-23,-20,-13,-24,-18,8,-9,-9,-18,-29,-11,-22,-16,0,0,0,0,0,0,0,-7,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,29,52,51,57,73,21,79,6,29995,29994]} 1. d4 Nf6 2. c4 e6
3. Nf3 d5 4. Nc3 Be7 5. Bf4 O-O 6. e3 Nbd7 7. c5 Ne4 8. Qc2 f5 9. h4 c6 10. Be2
b6 11. cxb6 axb6 12. g4 Ndf6 13. g5 Nd7 14. Nd2 $6 {Inaccuracy. a3 was best.} (
14. a3 Bb7) 14... Nxd2 15. Qxd2 b5 16. Qc2 Qa5 17. O-O b4 18. Nb1 c5 19. dxc5
Nxc5 $6 {Inaccuracy. Qxc5 was best.} (19... Qxc5 20. Qxc5) 20. Nd2 Bd7 21. Nb3
Qb6 22. Nxc5 Bxc5 23. Rfc1 Rfc8 24. Qd2 Bb5 25. Bxb5 Qxb5 26. Be5 Rc6 27. b3 $6
{Inaccuracy. Qd1 was best.} (27. Qd1 Qb7 28. a4 bxa3 29. bxa3 Bd6 30. Rab1 Rxc1
31. Qxc1 Rc8 32. Qd1 Qe7 33. Bxd6 Qxd6) 27... Rac8 28. Rc2 Bd6 29. Rxc6 Qxc6
30. Bxd6 Qxd6 31. Rc1 Rxc1+ $4 {Blunder. Rxc1+ was best.} (31... Rc7 32. Rc2
Rxc2 33. Qc1) 32. Qxc1 $4 {Blunder. Rxc7 was best.} d4 33. exd4 $4 {Checkmate
is now unavoidable. Qxc2 was best.} (33. Qc2 Kf7 34. h5 h6 35. gxh6 gxh6 36. f4
Qe7 37. Kf1 Qh4 38. Qc7+ Qe7 39. Qb6 Qh4) 33... Qxd4 34. h5 Qg4+ 35. Kf1 Qh3+
36. Kg1 Qxh5 (36... Qg4+) 37. Qc8+ Kf7 38. Qd7+ Kf8 39. Qd6+ Kf7 40. Qd7+ Kg6
41. Qxe6+ Kxg5 42. Qe7+ Kg4 43. Qxb4+ f4 44. Qe4 Qa5 45. a4 h5 46. Kg2 g5 47.
b4 1-0

[Event "U20 Pan-American Chess Championship"]
[Site "Volta Redonda - Rio de Janeir"]
[Date "2023.11.07"]
[Round "3.3"]
[White "Diego Saul Rodri Flores Quill"]
[Black "Ivan Varillas Jimenez"]
[Result "1/2-1/2"]
[ECO "C68"]
[WhiteElo "2414"]
[BlackElo "1985"]
[Annotator "Stockfish 16"]
[PlyCount "64"]
[EventDate "2023.11.06"]
[EventRounds "9"]
[EventCountry "BRA"]

{[%evp 16,64,3,-7,-1,-13,0,-8,2,3,37,-7,15,8,29,29,28,13,11,0,0,0,10,-19,-22,
-24,-18,-61,-62,-86,-86,-92,-82,-118,-68,-66,-58,-61,-56,-66,-53,-60,-68,-64,
-64,-63,-17,-24,-26,-32,-3]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. Nc3
f6 6. d4 exd4 7. Qxd4 Qxd4 8. Nxd4 Bd7 9. Be3 O-O-O {[#] C68: Ruy Lopez:
Exchange Variation, sidelines.} 10. h4 $146 ({Predecessor:} 10. O-O-O Ne7 11.
h4 b6 12. h5 c5 13. Nde2 Nc6 14. h6 gxh6 15. Bxh6 f5 16. Bg5 Re8 17. Bf6 Rg8
18. Rxh7 Bd6 {1-0 (26) Deac,B (2700)-Kravtsiv,M (2598) Chess.com INT 2023})
10... Bd6 11. h5 Ne7 {The position is equal.} 12. O-O-O f5 13. f3 {[%eval -7,
28]} (13. Nf3 $14 {[%eval 37,25] might be stronger.}) 13... h6 14. Nde2 fxe4
15. Nxe4 Be5 16. Bd4 Bxd4 17. Nxd4 b6 18. Rhe1 c5 19. Ne2 (19. Ng3 $5 {[%cal
Re1e7]}) 19... Rhf8 20. N2g3 Rde8 21. Rh1 {[%eval -61,25]} (21. Nc3 $11 {
[%eval -18,30]}) 21... Bc6 $15 22. Rh4 Nd5 $1 23. Rd2 Nf4 24. Rf2 {[#]} Re5 {
[%eval -68,27]} (24... Bxe4 $1 $17 {[%eval -118,25]} 25. Nxe4 Re5) 25. Kd2 Be8
{[%cal Re8h5]} 26. Ke3 $1 Nxh5 27. f4 Rd5 28. Nxh5 ({But not} 28. c4 $2 {[#]}
Nxg3 $1 {[%mdl 512]} 29. Nxg3 Rd4 $19) 28... Rxh5 ({Not} 28... Bxh5 $2 29. c4
$18) 29. Rxh5 Bxh5 30. f5 $1 Be8 {[%eval -17,28]} (30... a5 $15 {[%eval -63,25]
is more appropriate.}) 31. g4 $11 Bc6 32. Ng3 Be8 {Accuracy: White = 72%,
Black = 63%.} 1/2-1/2

[Event "U20 Pan-American Chess Championship"]
[Site "Volta Redonda - Rio de Janeir"]
[Date "2023.11.07"]
[Round "3.4"]
[White "Juan Martin Ibarra"]
[Black "Facundo Vazquez"]
[Result "1-0"]
[ECO "B62"]
[WhiteElo "2213"]
[BlackElo "2407"]
[Annotator "Stockfish 16"]
[PlyCount "45"]
[EventDate "2023.11.06"]
[EventRounds "9"]
[EventCountry "BRA"]

{[%evp 0,7,1,44,86,67,63,137,147,34]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6
5. Nc3 Nc6 6. Bg5 e6 7. Qd3 a6 $6 {Inaccuracy. Be7 was best.} (7... Be7 8.
O-O-O O-O 9. Ndb5 d5 10. exd5 Nxd5 11. Bxe7 Qxe7 12. Nxd5) 8. Nxc6 bxc6 9.
O-O-O Be7 10. Qg3 e5 11. Bc4 Be6 $6 {Inaccuracy. O-O was best.} (11... O-O 12.
Qd3) 12. Bxe6 fxe6 13. Qh3 Qc8 14. Bxf6 gxf6 15. Qh5+ Kd7 16. Na4 Kc7 17. Qf7
Re8 18. Rd3 Ra7 $2 {Mistake. f5 was best.} (18... f5 19. exf5 exf5 20. Kb1 e4
21. Rh3 Rb8 22. Rxh7 Rb4 23. b3 Kb8 24. Rg7 Rb7 25. Qg6) 19. Rhd1 d5 20. Rb3 d4
$6 {Inaccuracy. Qd7 was best.} (20... Qd7 21. Nb6) 21. Nc5 Kd6 22. Nxe6 Rd7 23.
Rb4 1-0

[Event "U20 Pan-American Chess Championship"]
[Site "Volta Redonda - Rio de Janeir"]
[Date "2023.11.07"]
[Round "3.5"]
[White "Faustino Oro"]
[Black "Matheus Mendes Domingues Ribe"]
[Result "1-0"]
[ECO "D01"]
[WhiteElo "2377"]
[BlackElo "2150"]
[Annotator "Stockfish 16"]
[PlyCount "111"]
[EventDate "2023.11.06"]
[EventRounds "9"]
[EventCountry "BRA"]

{[%evp 0,111,20,20,18,18,20,15,66,67,88,44,33,7,32,24,11,28,26,30,20,38,17,34,
46,53,48,30,30,32,50,41,52,37,31,20,7,-13,61,-2,-3,3,39,47,25,18,19,29,17,25,
40,17,42,3,14,15,12,10,9,5,8,18,5,15,10,16,24,0,13,10,13,6,0,0,0,0,0,0,0,0,0,
-8,11,0,-6,-4,-10,-13,77,55,31,30,105,96,128,107,107,123,143,154,155,154,175,
166,394,426,769,769,1008,1014,1095,1086,1152,1190]} 1. d4 d5 2. Nc3 Nf6 3. Bf4
c5 4. e3 e6 $6 {Inaccuracy. cxd4 was best.} (4... cxd4 5. exd4 Bg4 6. Be2 Bxe2
7. Qxe2 a6 8. Nd1 e6 9. c3) 5. Nb5 Na6 6. c3 Be7 7. Nf3 O-O 8. Be2 Bd7 9. Ne5
Bxb5 10. Bxb5 Qb6 11. Qe2 Nb8 12. O-O Nc6 13. Nxc6 bxc6 14. Bd3 cxd4 15. cxd4
c5 16. dxc5 Bxc5 17. Rfc1 Bd6 18. Bg5 Rfc8 19. Rc2 Rxc2 20. Qxc2 Qc7 21. Qxc7
Bxc7 22. Rc1 Be5 23. b4 h6 24. Bh4 Kf8 25. a4 $6 {Inaccuracy. f3 was best.} (
25. f3) 25... Ke8 $6 {Inaccuracy. g5 was best.} (25... g5 26. Bg3 Bxg3 27. hxg3
a5 28. b5 Nd7 29. Rc6 Ke7 30. f4 Kd8 31. Be2 Nb8 32. Rc3) 26. Kf1 $6 {
Inaccuracy. f3 was best.} (26. f3 Rb8) 26... g5 27. Bg3 Bxg3 28. hxg3 Kd8 29.
Ke2 Rc8 30. Rh1 h5 31. Kd2 Rb8 32. b5 Rc8 33. f3 Rc5 34. Rb1 Kc7 35. a5 Nd7 36.
f4 g4 37. e4 dxe4 38. Bxe4 Nf6 39. Bd3 Nd5 40. Re1 Nb4 41. Re5 Kd6 42. Rxc5
Kxc5 43. Bh7 $6 {Inaccuracy. b6 was best.} (43. b6 axb6 44. a6 Nc6 45. f5 exf5
46. Bxf5 b5 47. Bd7 Kb6 48. Be8 f6 49. Kc3 f5) 43... Kd6 $4 {Blunder. Kxb5 was
best.} (43... Kxb5) 44. Kc3 Nd5+ $6 {Inaccuracy. Kc5 was best.} (44... Kc5 45.
Bg8 f6 46. Bxe6 Kxb5 47. Kd4 Kc6 48. Ke4 Kd6 49. Kf5 Ke7 50. Bc8 Nc6 51. a6)
45. Kd4 f6 $6 {Inaccuracy. Nf6 was best.} (45... Nf6) 46. Be4 e5+ $2 {Mistake.
Ne7 was best.} (46... Ne7 47. b6 a6 48. b7 e5+ 49. fxe5+ fxe5+ 50. Kc4 Kc7 51.
Kc5 Ng8 52. Kd5 Nf6+ 53. Kxe5) 47. fxe5+ fxe5+ 48. Kc4 Nc7 49. Bg6 Nd5 50. Bxh5
$2 {Mistake. Be4 was best.} (50. Be4) 50... Ne3+ $2 {Mistake. Nf6 was best.} (
50... Nf6 51. Bg6) 51. Kd3 Nxg2 $6 {Inaccuracy. Nd1 was best.} (51... Nd1 52.
Bg6) 52. Bxg4 Kc5 53. b6 axb6 54. a6 e4+ 55. Ke2 Kc6 56. Bc8 1-0

[Event "U20 Pan-American Chess Championship"]
[Site "Volta Redonda - Rio de Janeir"]
[Date "2023.11.07"]
[Round "3.6"]
[White "Nathan Felipe Filgueiras"]
[Black "Luigy Lira De Siqueira"]
[Result "1/2-1/2"]
[ECO "C47"]
[WhiteElo "2323"]
[BlackElo "2179"]
[Annotator "Stockfish 16"]
[PlyCount "59"]
[EventDate "2023.11.06"]
[EventRounds "9"]
[EventCountry "BRA"]

{[%evp 0,41,20,9,71,5,24,19,70,-53,-15,-48,-31,-28,27,-32,26,39,45,35,26,33,36,
28,42,29,48,54,43,48,44,44,62,66,64,55,55,62,62,65,87,12,27,6]} 1. e4 e5 2. Nf3
Nc6 3. Nc3 Nf6 4. Be2 d5 5. exd5 Nxd5 6. O-O Nxc3 7. bxc3 Bd6 8. d4 exd4 9.
cxd4 O-O 10. Rb1 h6 11. Re1 Qf6 12. Be3 Rb8 13. d5 Ne5 14. Bxa7 Ra8 15. Bd4
Nxf3+ 16. Bxf3 Qg5 17. Rb2 b6 18. c4 Bd7 19. g3 Ra4 20. h4 Qg6 21. Bh5 Qf5 22.
Be2 Re8 23. Bf1 Rea8 24. Bd3 Qh3 25. Qb1 Ra3 26. Re3 Qg4 27. Re4 Qh3 28. Re3
Qg4 29. Re4 Qh3 30. Re3 (30. Be5 Bc5 31. Bxc7 $6 {Inaccuracy. Bd4 was best.} (
31. Bd4) 31... Bd6 $4 {Blunder. Bf5 was best.} (31... Bf5 32. Rd2) 32. Re1 $4 {
Blunder. Bxd6 was best.} (32. Bxd6 Rxd3 33. Qxd3 Bf5 34. Qf3 Bxe4 35. Qxe4 Ra6
36. Bc7 Qd7 37. Rxb6 Rxb6 38. Bxb6 Qd6) 32... Bc5 $4 {Blunder. Bxc7 was best.}
(32... Bxc7 33. Re3) 33. Re4 $2 {Mistake. Rbe2 was best.} (33. Rbe2 f6) 33...
Bf5 34. Be5 $4 {Blunder. Bf1 was best.} (34. Bf1 Bxe4)) 1/2-1/2

[Event "U20 Pan-American Chess Championship"]
[Site "Volta Redonda - Rio de Janeir"]
[Date "2023.11.07"]
[Round "3.7"]
[White "Sathish, Pranav"]
[Black "Casalaspro, Mathias Andre"]
[Result "1/2-1/2"]
[ECO "A49"]
[WhiteElo "2412"]
[BlackElo "2060"]
[PlyCount "81"]
[EventDate "2023.11.06"]
[EventRounds "9"]
[EventCountry "BRA"]

1. Nf3 Nf6 2. b3 g6 3. Bb2 Bg7 4. g3 O-O 5. Bg2 d6 6. d4 b5 7. O-O Bb7 8. Qd3
a6 9. Nbd2 Nbd7 10. c4 e6 11. Rac1 c5 12. e3 Qb6 13. Qe2 b4 14. e4 cxd4 15.
Bxd4 Qc6 16. Ne1 e5 17. Bb2 Ne8 18. Nd3 Qb6 19. c5 dxc5 20. Qe3 Nd6 21. Bh3 f5
22. exf5 Nxf5 23. Bxf5 Rxf5 24. Nxc5 Nxc5 25. Rxc5 Raf8 26. Nc4 Qe6 27. Rc7 Ba8
28. Rxg7+ Kxg7 29. Nxe5 Kg8 30. Ng4 Qxe3 31. Nxe3 Ra5 32. Ra1 Rd8 33. Nc4 Rad5
34. Kf1 Rd3 35. Re1 Rd1 36. Rxd1 Rxd1+ 37. Ke2 Rb1 38. Bd4 Bd5 39. Ne3 Be6 40.
Kd2 Rh1 41. h4 1/2-1/2

[Event "U20 Pan-American Chess Championship"]
[Site "Volta Redonda - Rio de Janeir"]
[Date "2023.11.07"]
[Round "3.8"]
[White "Reyes Zavaleta, Cristhian Yamil"]
[Black "Tomiello, Lucas Costamilan"]
[Result "1/2-1/2"]
[ECO "E92"]
[WhiteElo "1804"]
[BlackElo "2279"]
[PlyCount "80"]
[EventDate "2023.11.06"]
[EventRounds "9"]
[EventCountry "BRA"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. dxe5 dxe5 8.
Qxd8 Rxd8 9. Bg5 Re8 10. Nd5 Nxd5 11. cxd5 c6 12. Nd2 cxd5 13. exd5 h6 14. Be3
f5 15. Nc4 Rd8 16. Rd1 Na6 17. O-O f4 18. Bd2 Bf5 19. Bc3 e4 20. Bxg7 Kxg7 21.
Na5 Nb4 22. Rd4 Rxd5 23. Rxb4 Rxa5 24. Rxb7+ Kf6 25. Bc4 Rd8 26. b4 Ra3 27. h4
Be6 28. Bxe6 Kxe6 29. Rh7 h5 30. Rc1 Rd6 31. Rcc7 Rxa2 32. Rce7+ Kd5 33. Rhf7
Re6 34. Rxe6 Kxe6 35. Rxf4 Ke5 36. Rf7 a6 37. Rg7 Kf5 38. Rc7 Rb2 39. Rc5+ Kf4
40. Rc6 Rxb4 1/2-1/2

[Event "U20 Pan-American Chess Championship"]
[Site "Volta Redonda - Rio de Janeir"]
[Date "2023.11.07"]
[Round "3.9"]
[White "Silva, Kaua Marques"]
[Black "Munoz Ramos, Christopher"]
[Result "0-1"]
[ECO "B92"]
[WhiteElo "2235"]
[BlackElo "2038"]
[PlyCount "104"]
[EventDate "2023.11.06"]
[EventRounds "9"]
[EventCountry "BRA"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nf3 Be7 8. Bg5
Be6 9. Bxf6 Bxf6 10. Nd5 Bxd5 11. Qxd5 Nc6 12. O-O O-O 13. Rad1 Be7 14. c3 Qc7
15. Bc4 Nd8 16. Bb3 Ne6 17. Qc4 Qb6 18. Qe2 Nf4 19. Qe3 Qc6 20. g3 Nh5 21. Ne1
Nf6 22. Bd5 Nxd5 23. Rxd5 f5 24. Nc2 f4 25. Qd3 fxg3 26. hxg3 Rf6 27. Ne3 Raf8
28. Nf5 Qc7 29. Qe2 g6 30. Ne3 R6f7 31. Rd3 Bg5 32. Nd5 Qc5 33. Kg2 b5 34. f3
Bh6 35. Rfd1 Bg5 36. Qf2 Bd8 37. Qxc5 dxc5 38. f4 exf4 39. gxf4 Re8 40. Re3 g5
41. f5 h5 42. Rh1 h4 43. Kf3 Rd7 44. b3 g4+ 45. Kf4 Rxd5 46. Kxg4 Rd7 47. Kf4
Rg7 48. Rd3 Bc7+ 49. Ke3 Rg3+ 50. Kd2 Rxe4 51. Rd5 Bf4+ 52. Kd1 Rxc3 0-1

[Event "U20 Pan-American Chess Championship"]
[Site "Volta Redonda - Rio de Janeir"]
[Date "2023.11.07"]
[Round "3.10"]
[White "Lima, Carlos Eduardo I De"]
[Black "Piccoli, Lucas Fonseca"]
[Result "0-1"]
[ECO "E14"]
[WhiteElo "1857"]
[BlackElo "2225"]
[PlyCount "84"]
[EventDate "2023.11.06"]
[EventRounds "9"]
[EventCountry "BRA"]

1. d4 Nf6 2. Nf3 e6 3. e3 b6 4. Be2 Bb7 5. c4 Bb4+ 6. Bd2 Bxd2+ 7. Nbxd2 O-O 8.
Qc2 d6 9. O-O-O c5 10. e4 Nc6 11. d5 Nd4 12. Nxd4 cxd4 13. Kb1 e5 14. h4 Rc8
15. f4 Qe7 16. f5 b5 17. g4 bxc4 18. Nxc4 Nxd5 19. exd5 Bxd5 20. f6 Qe6 21.
fxg7 Rfe8 22. Rhe1 Bxc4 23. Bxc4 Rxc4 24. Qf2 Qg6+ 25. Ka1 Rc2 26. Qf3 Rb8 27.
h5 Qe6 28. Rb1 Rc5 29. g5 Kxg7 30. h6+ Kf8 31. Rf1 Qd5 32. g6 Qxf3 33. gxh7 Ke7
34. Rxf3 Rh8 35. b4 Rc2 36. Rg1 Rxh7 37. Rh3 e4 38. Kb1 d3 39. a3 d5 40. Rf1
Rc6 41. Rfh1 d4 42. Re1 e3 0-1

[Event "U20 Pan-American Chess Championship"]
[Site "Volta Redonda - Rio de Janeir"]
[Date "2023.11.07"]
[Round "3.11"]
[White "Vasquez Vargas, Henry Richard"]
[Black "Nascimento, Luiz Eduardo Da Tri"]
[Result "1-0"]
[ECO "D35"]
[WhiteElo "2216"]
[BlackElo "1877"]
[PlyCount "95"]
[EventDate "2023.11.06"]
[EventRounds "9"]
[EventCountry "BRA"]

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 Be7 6. e3 c6 7. Bd3 Be6 8. f4
h6 9. Bxf6 Bxf6 10. Qc2 c5 11. Nf3 cxd4 12. exd4 O-O 13. O-O-O Nc6 14. Bb5 Nb4
15. Qb3 Nc6 16. Kb1 a6 17. Bxc6 bxc6 18. Na4 Rb8 19. Qc3 Qd6 20. Ne5 Bxe5 21.
fxe5 Qb4 22. Qxb4 Rxb4 23. Nc5 a5 24. b3 Rb6 25. Rc1 Rc8 26. Kb2 Rb4 27. Rhd1
Bg4 28. Rd3 Bf5 29. a3 Rb6 30. Rf3 Be6 31. Rfc3 Rcb8 32. Na4 Rb5 33. Re3 Rc8
34. Rc5 Rxc5 35. Nxc5 Rb8 36. Kc3 Kf8 37. Re2 Ke7 38. Rb2 Ra8 39. a4 Bc8 40. b4
g5 41. bxa5 Rxa5 42. Rb8 Bg4 43. Kb4 Ra7 44. a5 Be2 45. Rb6 Bb5 46. a6 Bxa6 47.
Rxa6 Rc7 48. Ka5 1-0

[Event "U20 Pan-American Chess Championship"]
[Site "Volta Redonda - Rio de Janeir"]
[Date "2023.11.07"]
[Round "3.12"]
[White "Da Fonseca Pinto, Joao Gabriel Alves"]
[Black "Labussiere, Yago"]
[Result "0-1"]
[ECO "B51"]
[WhiteElo "1762"]
[BlackElo "2185"]
[PlyCount "128"]
[EventDate "2023.11.06"]
[EventRounds "9"]
[EventCountry "BRA"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 d6 4. O-O Bd7 5. c3 a6 6. Ba4 Nf6 7. Re1 b5 8. Bc2
Bg4 9. h3 Bxf3 10. Qxf3 g6 11. d3 Bg7 12. Nd2 O-O 13. Qe2 Nd7 14. Nf3 b4 15.
Bd2 Rb8 16. Ba4 bxc3 17. bxc3 Qc7 18. Bxc6 Qxc6 19. d4 Rb2 20. Qc4 e6 21. Bc1
Qb5 22. Qxb5 Rxb5 23. Bf4 Rb6 24. Rad1 cxd4 25. cxd4 Nf6 26. Rc1 d5 27. e5 Ne4
28. Ng5 Nxg5 29. Bxg5 Rb7 30. Rc6 h6 31. Be3 Ra8 32. Rec1 Kh7 33. Rc7 Raa7 34.
Rxb7 Rxb7 35. Rc6 Ra7 36. a4 Bf8 37. Bd2 Ba3 38. Kf1 Bb2 39. Bc3 Bxc3 40. Rxc3
Rb7 41. Rc6 Rb4 42. Rxa6 Rxd4 43. Ra7 Kg7 44. a5 g5 45. a6 Ra4 46. Ra8 f6 47.
exf6+ Kxf6 48. a7 Ke5 49. Ke2 Ra3 50. Rh8 Rxa7 51. Rxh6 Ra2+ 52. Kf3 Ra3+ 53.
Ke2 Ra2+ 54. Kf3 Ra3+ 55. Ke2 d4 56. Rg6 Kf5 57. Rg8 Kf4 58. g3+ Ke4 59. f3+
Rxf3 60. Rxg5 d3+ 61. Ke1 e5 62. h4 Kd4 63. h5 e4 64. Rg8 Ke3 0-1

[Event "U20 Pan-American Chess Championship"]
[Site "Volta Redonda - Rio de Janeir"]
[Date "2023.11.07"]
[Round "3.13"]
[White "Montes Orozco, Miguel Angel"]
[Black "Cahuapaza Tarapaca, Leonardo"]
[Result "1-0"]
[ECO "B11"]
[WhiteElo "2097"]
[BlackElo "1818"]
[PlyCount "101"]
[EventDate "2023.11.06"]
[EventRounds "9"]
[EventCountry "BRA"]

1. e4 c6 2. Nc3 d5 3. Nf3 Bg4 4. h3 Bxf3 5. Qxf3 e6 6. d3 g6 7. h4 Nd7 8. h5
Qf6 9. hxg6 fxg6 10. Qg3 Bb4 11. Bd2 d4 12. Nb1 Be7 13. Qc7 e5 14. Qxb7 Rb8 15.
Qa6 Bc5 16. Be2 Ne7 17. Bg4 h5 18. Bxd7+ Kxd7 19. b4 Bb6 20. Na3 Rhf8 21. f3 h4
22. Nc4 g5 23. b5 g4 24. O-O-O g3 25. Bb4 c5 26. Ba5 Nc8 27. Rde1 Kc7 28. Bd2
Ne7 29. f4 Ng6 30. f5 Ne7 31. Nxe5 Kd8 32. Nc4 Rh8 33. Bf4 h3 34. Rxh3 Rxh3 35.
gxh3 g2 36. Rg1 Qh4 37. Bxb8 Qf2 38. Bh2 Bc7 39. Bxc7+ Kxc7 40. Qxa7+ Kd8 41.
Qb8+ Nc8 42. Qh2 Qf1+ 43. Kb2 Nb6 44. Nxb6 c4 45. Qd6+ Ke8 46. Qe6+ Kf8 47.
Nd7+ Kg7 48. Qf6+ Kh7 49. Qe7+ Kg8 50. Qf8+ Kh7 51. Nf6# 1-0

[Event "U20 Pan-American Chess Championship"]
[Site "Volta Redonda - Rio de Janeir"]
[Date "2023.11.07"]
[Round "3.14"]
[White "Nascimento, Kaio Vinicius Da Tr"]
[Black "Schnaider, Ilan"]
[Result "0-1"]
[ECO "D93"]
[WhiteElo "1310"]
[BlackElo "2333"]
[PlyCount "88"]
[EventDate "2023.11.06"]
[EventRounds "9"]
[EventCountry "BRA"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bf4 O-O 6. e3 c5 7. dxc5 Qa5 8. Qa4
Qxc5 9. Qb5 Qxb5 10. Nxb5 Na6 11. Nbd4 Nh5 12. cxd5 Nxf4 13. exf4 Nb4 14. Bc4
Rd8 15. Nb5 Nc2+ 16. Ke2 Nxa1 17. Rxa1 Bg4 18. Rd1 Rac8 19. Bb3 a6 20. Nbd4
Bxd4 21. Rxd4 e6 22. Ke3 Bxf3 23. Kxf3 exd5 24. f5 Kg7 25. fxg6 hxg6 26. g4 b5
27. Ke3 Rc1 28. Bd1 Rc4 29. Rd2 g5 30. f3 Rf4 31. Bb3 d4+ 32. Kf2 Re8 33. Kg3
Re1 34. h4 f6 35. Bd5 Rg1+ 36. Kh2 Re1 37. Kg3 Re3 38. b3 Rc3 39. Ba8 f5 40.
hxg5 Rxg4+ 41. Kh3 Rxg5 42. Rxd4 Rc8 43. Kh4 Rg1 44. Rd7+ Kf6 0-1

[Event "U20 Pan-American Chess Championship"]
[Site "Volta Redonda - Rio de Janeir"]
[Date "2023.11.07"]
[Round "3.15"]
[White "Nascimento, Nicolas Daniel Trin"]
[Black "Seccafim, Caic Dos Santos"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "1797"]
[BlackElo "2062"]
[PlyCount "100"]
[EventDate "2023.11.06"]
[EventRounds "9"]
[EventCountry "BRA"]

1. Nf3 g6 2. g3 Bg7 3. d4 Nf6 4. Bg2 O-O 5. O-O d5 6. Nbd2 b6 7. c4 e6 8. Ne5
Bb7 9. Qc2 Nbd7 10. Nxd7 Qxd7 11. e3 Rfd8 12. b3 Rac8 13. Bb2 c5 14. dxc5 dxc4
15. Bxb7 Qxb7 16. Nxc4 Rxc5 17. Rad1 Rcd5 18. Rxd5 Qxd5 19. Rc1 h5 20. h4 b5
21. Ne5 Ne4 22. Nc6 Rd7 23. Bxg7 Kxg7 24. Qb2+ f6 25. Qd4 a6 26. Qxd5 Rxd5 27.
Rc2 f5 28. Kg2 Kf6 29. Nb4 Rc5 30. Rxc5 Nxc5 31. f3 Ke7 32. Kf2 Kd6 33. Ke2 e5
34. Nd3 Nxd3 35. Kxd3 a5 36. a3 Kc5 37. Kc3 Kd5 38. Kd2 b4 39. axb4 axb4 40.
Kd3 e4+ 41. fxe4+ fxe4+ 42. Ke2 Ke6 43. Kf2 Kf5 44. Kf1 Kg4 45. Kg2 Kf5 46. Kf1
g5 47. hxg5 Kxg5 48. Kg1 Kg4 49. Kg2 h4 50. gxh4 Kxh4 1/2-1/2

[Event "U20 Pan-American Chess Championship"]
[Site "Volta Redonda - Rio de Janeir"]
[Date "2023.11.07"]
[Round "3.16"]
[White "De Oliveira, Joao Pedro Almeida"]
[Black "Errazola, Mauricio"]
[Result "0-1"]
[ECO "B02"]
[BlackElo "1725"]
[PlyCount "60"]
[EventDate "2023.11.06"]
[EventRounds "9"]
[EventCountry "BRA"]

1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. Nc3 d6 5. f4 dxe5 6. fxe5 Nc6 7. Nf3 Bg4 8. d3
Nxe5 9. c5 Bxf3 10. gxf3 Nd5 11. Bd2 e6 12. Qa4+ c6 13. O-O-O Nxf3 14. Nxd5
Nxd2 15. Rxd2 Qxd5 16. Bg2 Qd7 17. d4 g6 18. Kb1 Bg7 19. Rhd1 O-O 20. d5 exd5
21. Rxd5 Qe6 22. Rd6 Qe5 23. Qd4 Rfe8 24. Rd2 a5 25. Qc4 Rad8 26. Qc2 Rxd6 27.
Rxd6 h5 28. Bf1 a4 29. Rd2 Qb8 30. Rf2 Re1+ 0-1

[Event "U20 Pan-American Chess Championship"]
[Site "Volta Redonda - Rio de Janeir"]
[Date "2023.11.07"]
[Round "3.17"]
[White "Reyes Zavaleta, Sergio Gabriel"]
[Black "Reimberg, Arthur Bernardo"]
[Result "1/2-1/2"]
[ECO "D06"]
[WhiteElo "1287"]
[PlyCount "89"]
[EventDate "2023.11.06"]
[EventRounds "9"]
[EventCountry "BRA"]

1. d4 d5 2. Nf3 Bf5 3. Bf4 Nf6 4. c4 e6 5. Nc3 Bd6 6. Bxd6 Qxd6 7. c5 Qe7 8. e3
O-O 9. Bd3 Bxd3 10. Qxd3 c6 11. O-O Nbd7 12. b4 e5 13. dxe5 Nxe5 14. Nxe5 Qxe5
15. Qd4 Qxd4 16. exd4 Rfe8 17. Rfe1 Ne4 18. Nxe4 dxe4 19. Rad1 Rad8 20. a4 f5
21. b5 Kf7 22. a5 Ke6 23. a6 bxa6 24. bxc6 Kd5 25. Re2 Kxc6 26. Ra2 Re7 27.
Rxa6+ Kb7 28. Rda1 Kb8 29. Rb1+ Rb7 30. Rd1 Rxd4 31. Rc1 Rc7 32. g3 Kb7 33. Re6
Rd5 34. Rb1+ Kc8 35. c6 a5 36. Rb6 Ra7 37. Rb1 a4 38. Re8+ Rd8 39. Re5 g6 40.
Reb5 Kc7 41. Rb7+ Rxb7 42. cxb7 Rb8 43. Ra1 Rxb7 44. Rxa4 Kd6 45. Ra8 1/2-1/2

[Event "U20 Pan-American Chess Championship"]
[Site "Volta Redonda - Rio de Janeir"]
[Date "2023.11.07"]
[Round "3.18"]
[White "Andriska, Matheus Jose Amante"]
[Black "De Mattos, Pedro Benedito Flor"]
[Result "0-1"]
[ECO "C50"]
[WhiteElo "1261"]
[PlyCount "92"]
[EventDate "2023.11.06"]
[EventRounds "9"]
[EventCountry "BRA"]

1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bc4 Bc5 5. d3 h6 6. O-O O-O 7. Bd2 d6 8. h3
Be6 9. Nd5 Bxd5 10. Bxd5 Nxd5 11. exd5 Ne7 12. c4 c6 13. dxc6 Nxc6 14. Bc3 Qd7
15. a3 a5 16. Rb1 a4 17. b3 axb3 18. Qxb3 Rxa3 19. Qb2 Rfa8 20. Ra1 Rxa1 21.
Rxa1 Rxa1+ 22. Qxa1 b6 23. Kf1 Kh7 24. Qb1 Nd4 25. Nxd4 exd4 26. Bd2 Qf5 27.
Ke2 Qe5+ 28. Kf1 Qh2 29. Ke2 Qxg2 30. Bb4 Qxh3 31. Bxc5 bxc5 32. Qb6 Qe6+ 33.
Kd2 Qf6 34. Ke2 h5 35. Qb1 h4 36. Qh1 g5 37. Kf1 Qf4 38. Kg1 Qc1+ 39. Kg2 Qxh1+
40. Kxh1 f5 41. Kg2 Kg6 42. f3 g4 43. f4 Kf6 44. Kh2 Ke6 45. Kg2 d5 46. cxd5+
Kxd5 0-1

