[Event "87th Tata Steel Challengers 2025"]
[Site "Wijk aan Zee"]
[Date "2025.01.26"]
[Round "8.1"]
[White "Pijpers, Arthur"]
[Black "Vaishali, Rameshbabu"]
[Result "1/2-1/2"]
[ECO "C60"]
[WhiteElo "2474"]
[BlackElo "2476"]
[Annotator "Stockfish 17 - Chessbase"]
[PlyCount "80"]
[EventDate "2025.??.??"]

{[%evp 0,80,19,8,8,8,8,-2,46,61,61,62,53,54,56,59,59,69,56,46,44,33,32,43,65,56,56,51,51,46,38,32,54,55,60,31,25,2,15,-48,-44,-54,-64,-69,-63,-62,-59,-75,-61,-68,-72,-59,-30,-31,-26,-38,-27,-34,-28,-39,-1,-25,0,-28,-18,-23,-2,-27,98,79,75,36,50,-42,0,0,52,0,0,-8,35,-2,-2]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nge7 4. Nc3 Ng6 5. d4 Nxd4 6. Nxd4 exd4 7. Qxd4 c6 8. Be2 Qb6 9. Be3 Qxb2 10. Rb1 Qa3 11. O-O Qd6 12. f4 Qxd4 13. Bxd4 d6 14. h4 h5 15. g3 f6 16. Bd3 Kd8 17. Bc4 Be7 18. Ne2 Kc7 19. Bf7 Bg4 20. Bxg6 $6 {Inaccuracy. Rfe1 was best.} (20. Rfe1 Nf8) 20... Bxe2 21. Rfe1 Bc4 22. a4 b6 $6 {Inaccuracy. b5 was best.} (22... b5) 23. Re3 c5 24. Rc3 Be6 25. Be3 Rh6 26. f5 Rxg6 27. fxg6 Bd7 28. a5 Bc6 $6 {Inaccuracy. Kc6 was best.} (28... Kc6) 29. Re1 $6 {Inaccuracy. Bf4 was best.} (29. Bf4) 29... b5 $2 {Mistake. Be8 was best.} (29... Be8 30. g4 Bxg6 31. gxh5 Bxh5 32. Bf4 Kc6 33. Rg3 Bf8 34. c4 Bf7 35. Ra3) 30. Bf4 Kd7 $6 {Inaccuracy. c4 was best.} (30... c4) 31. g4 $2 {Mistake. Kf2 was best.} (31. Kf2 b4) 31... Rh8 32. g5 Ke6 33. gxf6 gxf6 $2 {Mistake. Bxf6 was best.} (33... Bxf6 34. e5 Bxh4 35. Rd1 d5 36. Rxc5 Rc8 37. Rdxd5 Be7 38. Rd6+ Bxd6 39. exd6) 34. a6 $6 {Inaccuracy. Rg3 was best.} (34. Rg3 Rg8 35. Kf2 Rg7 36. Ke3 Bd8 37. Rd1 Bc7 38. a6 b4 39. Rg2 c4) 34... Rg8 $6 {Inaccuracy. b4 was best.} (34... b4) 35. Rg3 b4 36. g7 $6 {Inaccuracy. Kf2 was best.} (36. Kf2 Rg7 37. Ke3 Bd8 38. Rd1 Bc7 39. Bh6 Rg8 40. g7 c4 41. Bf4 Bb6+) 36... Kf7 37. Bh6 Bb5 38. Ra1 Bc6 39. Re1 Bb5 40. Ra1 Bc6 {Precisão Stockfish 17: Brancas 92% Pretas 92%  Precisão Chess.com: Brancas 91.1% Pretas 91.6%} 1/2-1/2

[Event "87th Tata Steel Challengers 2025"]
[Site "Wijk aan Zee"]
[Date "2025.01.26"]
[Round "8.2"]
[White "Gurel, Ediz"]
[Black "L'Ami, Erwin"]
[Result "1/2-1/2"]
[ECO "C65"]
[WhiteElo "2624"]
[BlackElo "2614"]
[Annotator "Stockfish 17 - Chessbase"]
[PlyCount "70"]
[EventDate "2025.??.??"]

{[%evp 9,70,26,13,12,14,22,22,20,15,22,24,18,22,18,31,41,24,30,26,8,32,29,70,0,-1,-10,-9,0,0,-9,-20,-5,8,5,22,10,10,6,7,12,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-105,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 d6 5. d4 exd4 6. Nxd4 {C65: Ruy Lopez: Berlin Defence (3...Nf6), unusual lines and 4 0-0 Bc5.} Bd7 7. Nc3 Nxd4 8. Bxd7+ Qxd7 9. Qxd4 Be7 10. Bf4 Qg4 {[%csl Yf4,Yg2]} 11. Be3 c6 $146 (11... O-O 12. O-O Rfe8 13. h3 Qh5 14. f4 a6 15. a4 Rac8 16. Rae1 Nd7 {1-0 Nitin,S (2381)-Chan,Y (2316) Titled Tuesday intern op 14th April blitz 2020 (7)}) 12. h3 Qe6 13. O-O-O O-O 14. g4 Nd7 (14... b5 $5) 15. f4 Nb6 16. g5 {White is more active.} (16. f5 $14 Qc4 17. h4) 16... f5 17. Kb1 Qc4 18. Rhe1 fxe4 19. Qxe4 (19. Nxe4 $5 Qxd4 20. Rxd4 $19) 19... Qxe4 20. Nxe4 d5 21. Nc5 Bxc5 22. Bxc5 Rf7 23. Re2 Nd7 24. Bd6 Nf8 25. Rde1 {and Re8 would now be decisive} Rd8 26. Be7 Re8 27. Bd6 Rd8 28. Be7 Rd7 $6 {Inaccuracy. Re8 was best.} (28... Re8 29. Bd6) 29. Bxf8 $6 {Inaccuracy. Ba3 was best.} (29. Ba3) 29... Rxf8 30. Re7 Rxe7 31. Rxe7 Rxf4 {[#] (  ...Rf1+). KR-KR. Black is a pawn up.} 32. b3 Rf7 33. Re8+ Rf8 34. Re7 Rf7 35. Re8+ Rf8 {Weighted Error Value: White=0.07 (flawless) /Black=0.04 (flawless) Mistake: 	White=1 	--- Inaccurate: 	--- 	Black=2 OK: 	White=17 	Black=16  Precisão Stockfish 17: Brancas 97% Pretas 97%  Precisão Chess.com: Brancas 96.8% Pretas 96.8%} 1/2-1/2

[Event "87th Tata Steel Challengers 2025"]
[Site "Wijk aan Zee"]
[Date "2025.01.26"]
[Round "8.3"]
[White "Bok, Benjamin"]
[Black "Svane, Frederik"]
[Result "1/2-1/2"]
[ECO "E32"]
[WhiteElo "2583"]
[BlackElo "2664"]
[Annotator "Stockfish 17 - Chessbase"]
[PlyCount "60"]
[EventDate "2025.??.??"]

{[%evp 13,60,0,0,0,0,0,0,0,0,0,0,0,0,0,0,7,0,0,0,0,0,0,0,0,8,14,12,0,0,0,0,0,0,0,0,0,0,-11,-10,-10,-7,-21,-10,-11,0,-11,0,-10,0]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. e4 {[%cal Ye2e4,Ye4e5][%mdl 32]} d5 6. e5 Ne4 7. Bd3 c5 {The position is equal.} 8. Nf3 {E32: Nimzo-Indian: Classical (4 Qc2): 4...0-0.} cxd4 9. Nxd4 Nd7 10. Bf4 Qh4 11. g3 Qh5 12. O-O g5 (12... Nxe5 13. Be2 Ng4 14. Bxg4 Qxg4 15. f3 $16 (15. cxd5 Nxc3 16. bxc3 Bc5 $16)) 13. cxd5 Bxc3 14. bxc3 exd5 15. Be3 {[%cal Yf4e3,Ye3d4,Yd4f6][%mdl 32]} Nxe5 16. f3 {Inhibits Ng4.} (16. Be2 {looks sharper.} g4 17. f3 gxf3 18. Nxf3 Bg4 19. Nxe5 Bxe2 20. Rf4) 16... Nc5 17. Bf5 Ne6 $1 {[%mdl 4] is currently scoring better than 17...f6.} 18. Rae1 Nxd4 19. Bxd4 Nc6 20. Bf6 {A strong pair of Bishops.} Qh6 21. Bxc8 Raxc8 22. Qf5 {[%csl Yd5,Yg5][%cal Yf3f4] Black must now prevent f4!.} Qg6 23. Qxg5 Qxg5 24. Bxg5 f6 25. Be3 $146 (25. Bf4 Rfd8 26. Rf2 Kf7 27. Rd2 d4 28. cxd4 Rxd4 29. Rb1 b6 30. Rc2 Rdd8 31. Rbc1 {½-½ Vidit,S (2723)-Ding,L (2806) Chessable Masters Prelim rapid 2022 (4)}) 25... Kf7 26. Rd1 Rfd8 27. Kf2 Ne5 28. Bd4 Nc6 29. Be3 Ne5 30. Bd4 Nc6 {An uneventful encounter. Weighted Error Value: White=0.02 (flawless) /Black=0.02 (flawless) OK: 	White=10 	Black=11 Best: 	--- 	Black=2  Precisão Stockfish 17: Brancas 99% Pretas 99%  Precisão Chess.com: Brancas 99.2% Pretas 99.2%} 1/2-1/2

[Event "87th Tata Steel Challengers 2025"]
[Site "Wijk aan Zee"]
[Date "2025.01.26"]
[Round "8.4"]
[White "Nguyen, Thai Dai Van"]
[Black "Lu, Miaoyi"]
[Result "1-0"]
[ECO "D77"]
[WhiteElo "2668"]
[BlackElo "2429"]
[Annotator "Stockfish 17 - Chessbase"]
[PlyCount "119"]
[EventDate "2025.??.??"]

{[%evp 14,119,31,22,22,20,19,18,18,25,20,30,34,0,10,0,0,0,0,0,0,0,0,0,29,33,28,31,41,25,33,32,22,29,26,26,37,6,12,0,0,0,0,0,0,0,0,0,6,5,7,8,52,53,52,54,52,44,46,0,35,0,43,8,13,8,8,8,8,8,6,9,10,11,66,68,79,50,62,30,165,159,167,137,792,694,820,813,733,557,29971,29968,29971,29972,29983,29984,29984,29985,29985,29986,29991,29988,29989,29990,29990,29991,29991,29992]} 1. Nf3 d5 {[%cal Yd7d5,Yd5c4][%mdl 32]} 2. g3 g6 3. Bg2 Bg7 4. d4 Nf6 5. c4 dxc4 6. O-O O-O 7. Na3 c5 {is recently more successful than 7...c3.} 8. dxc5 c3 {D77: Fianchetto Grünfeld: 6 0-0: Replies other than 6...c6.} 9. Nb5 (9. bxc3 Ne4 10. Qc2 Nxc5) 9... Na6 {[%cal Yb8a6,Ya6c5,Yc5e4][%mdl 32]} 10. Nxc3 Nxc5 {The position is equal.} 11. Be3 Nfe4 12. Nxe4 Nxe4 13. Nd4 $5 {[%mdl 4] An interesting side line.} Nd6 14. Rc1 {Prevents Nc4.} Qa5 $146 (14... Bd7 15. Qd2 Rc8 16. Rxc8 Qxc8 17. Rc1 Qb8 18. Bg5 Re8 19. Nb3 Bb5 20. Na5 Bf6 21. Bxf6 exf6 {½-½ Sjugirov,S (2665)-Goganov,A (2581) RUS Cup final 2019 (2.1)}) 15. a3 {The position is symmetric and equal} Rd8 16. b4 Qa6 {[%cal Yd6f5]} 17. Qb3 e5 18. Nc6 bxc6 19. Rxc6 Qxe2 {aiming for ...Be6.} 20. Qd1 $1 (20. Rxd6 Rxd6 21. Bxa8 Bh3 $19) 20... Bg4 {[#]} 21. Rxd6 Qxd1 22. Rdxd1 Bxd1 23. Bxa8 Be2 24. Re1 Bb5 {Repels Bc6} 25. Bg2 a6 $1 26. Rc1 e4 27. Bxe4 Bb2 {[%csl Ya3,Yc1]} 28. Rb1 Bxa3 29. Kg2 Rc8 30. Bf3 Bc6 31. Bxc6 Rxc6 {[%mdl 4096] Endgame KRB-KRB} 32. Kf3 (32. Rb3 $5 Bc1 33. Bd4) 32... Rc8 $6 {Inaccuracy. Rc2 was best.} (32... Rc2 33. h4 f5 34. h5 Kf7 35. b5 axb5 36. Rxb5 Rc7 37. Kg2 Be7 38. Kh1) 33. Bd2 $1 Rc2 $1 34. Ke3 Ra2 $1 35. Bc3 {Prevents Bb2.} Rc2 $1 36. Bd2 Ra2 $1 {Wards off Ra1} 37. Bc3 Rc2 $1 38. Be1 $6 {Inaccuracy. Bd4 was best.} (38. Bd4 Rc8) 38... Bc1+ 39. Kd3 Rc6 40. f4 {Black should prevent Bf2.} Rd6+ 41. Kc4 Be3 {Prevents Bf2} 42. Bc3 Kf8 43. Be5 Rc6+ $6 {Inaccuracy. Re6 was best.} (43... Re6 44. Kd5 Ke8 45. Rb3 Bd2 46. Bd6 Kd7 47. Bc5 h5 48. f5 gxf5 49. Rf3) 44. Kd5 $14 Rb6 45. Bc7 Rb5+ 46. Kc6 {And now Ra1 would win.} Bc5 $2 {Mistake. Bd2 was best. [#]} (46... Bd2) 47. bxc5 $1 $18 Rxb1 {KR-KB} 48. Kd7 h5 $4 {[%mdl 8192] Blunder. Rh1 was best. Black cannot hold the game after this.} (48... Rh1 49. h4 f5 50. c6 a5 51. Bd6+ Kg7 52. h5 Rc1 53. c7 Kh6 54. hxg6) 49. c6 Kg7 50. Be5+ f6 51. c7 Rc1 $6 {Inaccuracy. fxe5 was best.} (51... fxe5 52. c8=Q exf4 53. gxf4 Rd1+ 54. Ke6 Re1+ 55. Kd5 Rd1+ 56. Ke4 Re1+ 57. Kf3) 52. Bb2 {White mates.} (52. c8=B $2 {is the wrong capture.} fxe5 53. fxe5 a5 $19) 52... Rc2 53. c8=Q (53. c8=R Rxb2 54. Rc7 Re2 $15 (54... Rxh2 55. Ke6+ Kh6 56. Kxf6 $17)) 53... Rxb2 {KQ-KR} 54. Qc7 Re2 55. Kd6+ Kf8 56. Qh7 a5 {[%cal Ya6a5,Ya5a4][%mdl 32]} 57. Qxg6 a4 $2 {Checkmate is now unavoidable. Re8 was best.} (57... Re8 58. Qxf6+ Kg8 59. Qg5+ Kf8 60. Qh6+ Kg8 61. Qxh5 Rb8 62. Qd5+ Kg7 63. Ke7) 58. Qxf6+ Kg8 59. Qg6+ Kf8 60. f5 {Weighted Error Value: White=0.06 (flawless) /Black=0.31 Loses game: 	--- 	Black=1 Mistake: 	--- 	Black=2 Inaccurate: 	White=3 	Black=2 OK: 	White=21 	Black=17 Best: 	White=3 	Black=4 Strong: 	White=2 	Black=6  Precisão Stockfish 17: Brancas 98% Pretas 92%  Precisão Chess.com: Brancas 97.3% Pretas 90.1%} 1-0

[Event "87th Tata Steel Challengers 2025"]
[Site "Wijk aan Zee"]
[Date "2025.01.26"]
[Round "8.5"]
[White "Suleymanli, Aydin"]
[Black "Oro, Faustino"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "2623"]
[BlackElo "2447"]
[Annotator "Stockfish 17 - Chessbase"]
[PlyCount "117"]
[EventDate "2025.??.??"]

{[%evp 9,117,18,61,57,79,74,61,68,77,46,64,30,102,100,108,66,103,51,120,63,95,89,153,134,120,104,166,151,167,169,172,160,158,168,164,168,152,152,172,170,191,100,108,100,104,114,147,142,152,152,149,12,14,8,6,9,12,5,6,3,5,4,14,10,7,6,22,19,10,10,9,-6,60,64,62,60,68,35,83,64,57,60,71,75,65,84,100,81,135,128,315,304,474,437,461,451,453,419,503,512,532,520,406,143,137,124,121,129,206,180]} 1. d4 Nf6 2. Bf4 c5 3. d5 Qb6 4. Nc3 d6 5. Qc1 Bf5 $146 (5... e5 6. Bg5 Be7 7. e4 h6 8. Bd2 Qd8 9. Bb5+ Nbd7 10. a4 O-O 11. Nge2 Ne8 {1-0 Edouard,R (2640)-Santos Latasa,J (2591) BEL-chT 1920 2019 (8.1)}) 6. f3 $1 {A45: Trompowsky Attack.} g6 7. a4 {[%cal Ya2a4,Ya4a5][%mdl 32]} Bg7 8. a5 {White is slightly better.} Qd8 9. g4 Bc8 10. Bh6 Kf8 (10... Bxh6 $1 {keeps the balance.} 11. Qxh6 b5) 11. e4 $16 {[%cal Ye2e4,Ye4d5][%mdl 32]} e6 12. Nge2 exd5 13. exd5 Nbd7 (13... Na6 $1 $14) 14. Bg2 (14. Ng3 $1 $16) 14... Ne5 15. O-O Ng8 $6 {Inaccuracy. Ne8 was best.} (15... Ne8) 16. Bxg7+ $1 Kxg7 17. h3 h5 $6 {Inaccuracy. f5 was best.} (17... f5) 18. g5 $18 Bf5 19. f4 Nd7 20. Ne4 Bxe4 21. Bxe4 Ne7 22. f5 gxf5 23. Bxf5 Ne5 24. Be4 h4 25. Nf4 {Wards off Rh5} (25. Rf6 $18) 25... N7g6 $16 26. Bxg6 $6 {Inaccuracy. Ng2 was best.} (26. Ng2) 26... Nxg6 (26... Qxg5+ $2 27. Kh1 Qe7 (27... fxg6 $2 28. Ne6+ Kh7 29. Qxg5 $18) 28. Bf5 $18) 27. Kh2 Qd7 $6 {Inaccuracy. Qe7 was best.} (27... Qxg5 $2 28. Ne6+ fxe6 29. Qxg5 $18) (27... Qe7) 28. Qd2 Rae8 29. Qc3+ Ne5 (29... Re5 $2 30. Nd3) 30. Ng2 $4 {Blunder. Rf2 was best. White is more active.} (30. Rf2) 30... Rh5 31. Qd2 Kh7 32. Qf2 Qe7 33. Nf4 (33. Nxh4 Qxg5 34. Qf5+ Qxf5 35. Nxf5 Ng4+ 36. Kg1 Nf6 (36... Rxh3 37. Kg2)) 33... Rxg5 34. Qxh4+ Kg8 35. Rae1 Qf6 (35... Rg7 {simplifies} 36. Qxe7 Rxe7 37. Nd3 Rg5) 36. Kh1 $36 {[%mdl 2048] White has the initiative.} (36. Ne6 $2 Rg2+ 37. Kxg2 Qxh4 $19) 36... Rf5 $1 37. Qxf6 Rxf6 38. Nh5 Rxf1+ 39. Rxf1 {[%mdl 4096] Endgame KRN-KRN} Kf8 40. b3 {Dodges Nc4} Ke7 $6 {Inaccuracy. Ng6 was best.} (40... Ng6 41. Ng3 Nh4 42. Rf4 Re3 43. Rxh4 Rxg3 44. Rh8+ Kg7 45. Rd8 Rxh3+ 46. Kg2) 41. Ng7 Rh8 42. Nf5+ Kd7 43. Kg2 Ng6 (43... c4 $14) 44. Kg3 Ne7 45. Ne3 f5 46. h4 {[%cal Yc2c4]} (46. Nxf5 Nxd5 47. h4 Nc3) 46... Rh5 47. c4 Ke8 48. Re1 {Ng2 is the strong threat.} Kf7 49. Ng2 $1 Rh6 $4 {Blunder. Ng6 was best. [#] Prevents Re6} (49... Ng6 50. Re6) 50. Nf4 $1 $18 Ng6 (50... Ng8 51. Ne6 b6 52. Ng5+ Kg6 53. axb6 f4+ 54. Kh3 (54. Kxf4 Rxh4+ 55. Kf3 axb6 $18) (54. Kf3 axb6 55. Rg1 Ne7 $18) 54... axb6) 51. Nxg6 (51. Re6 Rxh4 52. Rxg6 (52. Nxg6 Rg4+ 53. Kf3 Rxg6) 52... Rxf4 53. Rxd6 Rg4+ 54. Kf3 Ke7 55. Re6+ Kf7 $18) 51... Rxg6+ {KR-KR} 52. Kf4 Rg4+ 53. Kxf5 Rxh4 54. Re6 Rh3 55. Rxd6 Ke7 {Dodges Rd7+} 56. Rg6 $2 {Mistake. Re6+ was best.} (56. Re6+ Kd7 57. a6 Rf3+ (57... Rxb3 58. axb7 Rxb7 59. Ra6 Rb4 60. Ke5 Rxc4 61. Rxa7+ Kc8) 58. Ke5) 56... Rxb3 $16 {[#]} 57. a6 $1 bxa6 58. Rc6 (58. Rxa6 Rf3+ 59. Ke4 Rc3) 58... Kd7 (58... Rb6 $16 {is a better defense.} 59. Rc7+ (59. Rxc5 Kd7 $16) 59... Kd6 60. Rxa7 Rb4 61. Rxa6+ Kd7) 59. Ke4 {Weighted Error Value: White=0.16 (very precise) /Black=0.23 (precise) Loses game: 	--- 	Black=1 Missed win: 	White=1 	--- Mistake: 	White=3 	Black=8 Inaccurate: 	White=4 	Black=1 OK: 	White=22 	Black=22 Best: 	White=5 	Black=4 Strong: 	White=4 	Black=1  Precisão Stockfish 17: Brancas 94% Pretas 94%  Precisão Chess.com: Brancas 89.6% Pretas 88.4%} (59. Rxa6 Rc3) 1-0

[Event "87th Tata Steel Challengers 2025"]
[Site "Wijk aan Zee"]
[Date "2025.01.26"]
[Round "8.6"]
[White "Deshmukh, Divya"]
[Black "Nogerbek, Kazybek"]
[Result "0-1"]
[ECO "A22"]
[WhiteElo "2490"]
[BlackElo "2514"]
[Annotator "Stockfish 17 - Chessbase"]
[PlyCount "132"]
[EventDate "2025.??.??"]

{[%evp 13,132,0,4,1,4,-17,0,0,0,-21,-26,-30,-53,-41,0,-35,0,-57,-60,-81,-44,-42,-42,-58,-51,-83,-101,-79,-118,-180,-6,-27,-17,-78,-54,-52,-58,-54,-62,-62,-11,-64,-66,-69,-68,-79,-79,-79,-79,-73,-77,-75,-77,-70,-60,-63,-57,-88,-88,-88,-88,-88,-88,-88,-88,-88,-88,-88,-88,-88,-88,-88,-88,-105,-88,-141,-88,-102,-88,-117,-116,-114,-102,-119,-60,-185,-179,-155,-143,-498,-453,-568,-562,-537,-458,-408,-406,-442,-439,-646,-583,-631,-461,-4133,-940,-940,-933,-925,-845,-605,-575,-510,-433,-508,-401,-582,-571,-557,-556,-542,-535]} 1. c4 e5 2. Nc3 Nf6 3. g3 Bb4 4. Bg2 O-O 5. e4 Bxc3 6. bxc3 c6 7. Ne2 d5 8. exd5 {A22: English Opening: 1...e5 2 Nc3 Nf6.} cxd5 9. d4 exd4 (9... dxc4 $5 10. Ba3 Re8 $14) 10. O-O $146 {The position is equal.} (10. Nxd4 Re8+ 11. Be3 dxc4 12. O-O Nd5 13. Qh5 Nxe3 14. fxe3 g6 15. Qd5 Qe7 16. Qxc4 Kg7 17. Bd5 f6 18. Rf4 Nd7 19. Ne6+ Kh8 20. Qd4 Ne5 21. Nc5 g5 {½-½ Petursson,M (2499)-Olafsson,H (2512) ISL-chT 1718 2017 (6.2)}) 10... dxc4 11. Ba3 $2 {Mistake. Nxd4 was best. [#] A strong pair of Bishops.} (11. Nxd4 Qa5 12. Bf4 Bg4 13. Qb1 Nc6 14. Nb5 a6 15. Nd6 Ne5 16. Bxe5 Qxe5) 11... d3 $1 12. Bxf8 Qxf8 13. Nd4 Qa3 {Prevents Qa4} 14. Qd2 Nbd7 (14... Nc6 $6 15. Nxc6 bxc6 16. Bxc6 $14) 15. Rab1 (15. Qf4) 15... Nb6 $1 $15 16. Rb4 $6 {Inaccuracy. Rfe1 was best.} (16. Rfe1) 16... Bd7 $6 {Inaccuracy. Qa6 was best. Prevents Nb5.} (16... Qa6) 17. Bxb7 Re8 18. Bf3 h6 19. Nb5 {[#]} Qxb4 20. cxb4 Bxb5 21. Rc1 $6 {Inaccuracy. Re1 was best. [#]} (21. Re1 Rc8 22. Rc1) 21... Rc8 $4 {Blunder. Ne4 was best.} (21... Ne4 22. Bxe4 Rxe4) 22. Qf4 c3 23. Qe5 {[#]} (23. Qd4 Na4 24. Kg2) 23... Nbd5 $1 24. Qd4 $1 d2 {Black plays in the center Dancing on a razor blade.} 25. Qxd2 cxd2 26. Rxc8+ Be8 (26... Kh7 $15 27. Rc2 Nxb4 28. Rxd2 a5) 27. Kf1 (27. Rc4) 27... Nxb4 28. Ke2 Nxa2 29. Kxd2 Nb4 30. Kc3 a5 31. Rc5 Na6 32. Rxa5 Nc7 33. Kd4 Ne6+ 34. Ke3 g5 35. h4 $6 {Inaccuracy. Bd1 was best.} (35. Bd1 Bc6) 35... gxh4 36. gxh4 Kg7 37. Bb7 Bd7 38. Bf3 Nf8 39. Kf4 Ng6+ 40. Kg3 Be6 41. Ra1 Ne7 42. Rh1 Ne8 43. Bg4 Bd5 44. Bf3 {[#]} (44. Ra1) 44... Bc4 (44... Nf5+ $1 45. Kf4 Be6) 45. Bg4 Nd6 46. Re1 Kf6 47. Kh3 Bd5 48. Ra1 Ng6 49. h5 (49. Ra6 $1 $15 Ke5 50. Kh2) 49... Nf4+ $19 50. Kh4 Ke5 51. Ra6 $6 {[%mdl 8192] Inaccuracy. Ra3 was best. Loses the game.} (51. Ra3 Nf5+ 52. Bxf5 Kxf5 53. Ra5 Kf6 54. Kg4 Ke5 55. Kh4 Ne2 56. Ra6 Be6) 51... Nd3 52. Ra5 Nxf2 53. Bd7 f6 54. Kg3 Nfe4+ 55. Kh4 Nc4 56. Ra7 (56. Rb5) 56... Kf4 57. Bc8 Ne5 {and ...Nf2 would now be decisive} 58. Bb7 (58. Kh3) 58... Nf3+ (58... Bxb7 59. Rxb7 Nf3+ 60. Kh3 Kg5) 59. Kh3 Nfg5+ 60. Kh4 {[#]} Nd6 $1 {[%cal Rd6f5]} 61. Ra4+ Bc4 {[%cal Rd6f5]} 62. Bc8 Nf3+ 63. Kh3 Kg5 64. Bg4 (64. Bb7 Be6+ (64... Nxb7 $2 65. Rxc4 Nd6 66. Rb4 $19) 65. Kg3 Nxb7 66. Kxf3) 64... Ne5 {Black is clearly winning.} 65. Bd1 Ne4 66. Kg2 {Prevents Nf2.} Nc3 {[%csl Ya4,Yd1] Weighted Error Value: White=0.42/Black=0.32 Loses game: 	White=1 	--- Missed win: 	--- 	Black=1 Mistake: 	White=9 	Black=2 Inaccurate: 	White=4 	Black=3 OK: 	White=13 	Black=25 Best: 	White=3 	Black=2 Strong: 	White=1 	Black=1 Brilliant: 	--- 	Black=1  Precisão Stockfish 17: Brancas 95% Pretas 96%  Precisão Chess.com: Brancas 86.8% Pretas 91.7%} 0-1

[Event "87th Tata Steel Challengers 2025"]
[Site "Wijk aan Zee"]
[Date "2025.01.26"]
[Round "8.7"]
[White "Yakubboev, Nodirbek"]
[Black "Bulmaga, Irina"]
[Result "1-0"]
[ECO "A48"]
[WhiteElo "2659"]
[BlackElo "2386"]
[Annotator "Stockfish 17 - Chessbase"]
[PlyCount "73"]
[EventDate "2025.??.??"]

{[%evp 9,73,12,24,14,26,31,31,11,1,9,42,28,31,26,31,28,30,39,39,43,47,44,47,42,60,58,54,62,61,67,84,82,114,122,117,85,215,232,245,226,305,285,291,260,325,333,287,257,356,375,362,371,380,285,686,695,666,629,632,641,617,621,716,578,565,539]} 1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. b4 Bg7 5. Bb2 O-O 6. e3 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} Bf5 7. c4 c6 8. Rc1 $5 {[%mdl 4] White is slightly better. Leaves trodden paths.} a5 9. b5 Ne4 $6 {Inaccuracy. a4 was best.} (9... a4) 10. cxd5 Nxd2 11. Qxd2 cxd5 12. Be2 Nd7 13. O-O Nf6 14. Ba3 {Repels Qd6} Re8 15. Qb2 Nd7 16. Qb3 $146 (16. Nh4 Be6 17. f4 Bf6 18. Nf3 Bf5 19. Ne5 Bxe5 20. dxe5 Be4 21. Qd4 e6 22. Rc3 {1-0 Chatalbashev,B (2570)-Hunt,A (2454) Skopje Karposh op 2012 (6)}) 16... Nb6 17. h3 h5 18. Bc5 a4 19. Qb4 Bf8 $6 {Inaccuracy. Nd7 was best.} (19... Nd7 20. b6) 20. Ne5 Nd7 21. b6 {White is much more active.} Nxc5 22. dxc5 {aiming for c6.} f6 $6 {Inaccuracy. Bg7 was best. [#] This costs Black the game.} (22... Bg7) 23. Nf3 $1 $18 e5 {[#]} 24. Nh4 $1 Qc8 25. Bb5 {[%cal Ye2b5,Yb5a4,Ya4b3,Yb3c2,Yc2e4][%mdl 32]} Rd8 26. Bxa4 Kg7 27. Nxf5+ Qxf5 28. Qb5 h4 29. c6 bxc6 30. Rxc6 d4 31. Bb3 Qe4 $2 {Mistake. e4 was best.} (31... Bd6 32. a4 Qd7) (31... e4 32. Qc4) 32. Qc4 {Qg8+ would kill now. White is clearly winning.} Kh6 33. Bc2 Qd5 34. Qxd5 Rxd5 35. Be4 Rdd8 36. b7 Rab8 37. Rxf6 {Weighted Error Value: White=0.15 (very precise) /Black=0.46 Mistake: 	--- 	Black=2 Inaccurate: 	--- 	Black=4 OK: 	White=15 	Black=7 Strong: 	White=1 	--- Precisão Stockfish 17: Brancas 97% Pretas 91% Precisão Chess.com: Brancas 95.8% Pretas 87.5%} 1-0

