[Event "Magistral Osasco 2024"] [Site "Sao Paulo"] [Date "2024.03.19"] [Round "2.1"] [White "Cubas, Jose Fernando"] [Black "Duarte Napoles, Fanny"] [Result "1-0"] [ECO "C47"] [WhiteElo "2417"] [BlackElo "2203"] [Annotator "Stockfish 16"] [PlyCount "133"] [EventDate "2024.03.18"] [EventCountry "BRA"] {[%evp 15,133,8,7,6,9,12,14,8,24,26,35,10,27,20,42,16,40,27,49,1,2,-16,2,-26,3, -3,3,3,3,6,3,0,4,4,3,4,4,0,0,0,0,0,0,-2,0,-3,0,0,6,5,9,4,7,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,3,493, 485,493,493,493,493,494,494,493,494,482,482,482,483,564,492,516,512,495,504]} 1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Nxc6 bxc6 7. Bd3 O-O 8. O-O d5 9. exd5 {C47: Scotch Four Knights and Four Knights with 4 g3.} Bg4 10. f3 Bh5 11. Bg5 {The position is equal.} Bxc3 $146 ({RR} 11... Qd6 12. Kh1 Bxc3 13. bxc3 cxd5 14. Qd2 Bg6 15. Rab1 Rab8 16. Rb3 Bxd3 17. cxd3 Rxb3 18. axb3 Re8 19. Ra1 a6 20. b4 h6 21. Be3 Re6 22. Kg1 Nh5 23. Re1 Qe7 24. Bf2 Rxe1+ 25. Qxe1 Qxe1+ 26. Bxe1 {Seils,J (2315)-Sieciechowicz,M (2398) Germany GER 2024 0-1 (54)}) 12. bxc3 cxd5 13. c4 c6 14. cxd5 cxd5 15. Rb1 Qd6 16. Qd2 Rac8 $146 ({Predecessor:} 16... Bg6 17. Rfd1 Rac8 18. Rb7 Bxd3 19. Qxd3 h6 20. Bxf6 Qxf6 21. Rxa7 Qb6+ 22. Qd4 Qxd4+ 23. Rxd4 Rxc2 24. Rxd5 {1/2-1/2 (41) Kislov,O (2249)-Lopez Gracia,F (2289) Chess.com INT 2021}) 17. Rb5 Bg6 18. Qa5 Rfd8 19. Rfb1 Qe5 20. Bxf6 Qe3+ 21. Kh1 gxf6 22. Rxd5 Rxd5 23. Qxd5 Bxd3 24. Qxd3 Qxd3 25. cxd3 $11 {[%mdl 4096] Endgame KR-KR} Rc2 26. Ra1 (26. a4 {is interesting.} a5 27. h3 Ra2 28. Rb5 Rxa4 29. Rd5) 26... Rd2 27. h3 Rxd3 28. a4 a5 29. Kh2 Kg7 30. Kg3 Rd2 31. Re1 Rd5 32. Re4 f5 33. Rc4 Kg6 34. Kf4 Rd2 35. g3 Rd3 36. g4 fxg4 37. hxg4 f6 38. Ke4 Ra3 39. Kf4 Rb3 40. Rd4 Ra3 41. Kg3 Ra2 42. f4 h6 43. Rd7 {Intending f5+ and mate.} f5 44. gxf5+ Kf6 45. Rd6+ Kxf5 46. Rd5+ {[%mdl 64] [#] Double Attack} Kg6 47. Rxa5 Ra3+ 48. Kg4 h5+ 49. Kh4 Rf3 50. f5+ Kf6 51. Kxh5 {Kg4 is the strong threat.} Rf4 52. Ra8 Rxf5+ 53. Kg4 {White threatens Rf8+ and mate.} Rc5 54. a5 {Threatens to win with a6.} Rc4+ 55. Kf3 { Hoping for a6.} Ra4 56. a6 {Black must now prevent Ke3.} Kg7 57. Ke3 {And now Kd2 would win.} Kf7 $4 {[%eval 493,20] Blunder. Rc4 was best.} (57... Rc4 58. Kd2 Rc6 59. Kd3 Rf6 60. Kd4 Rd6+ 61. Kc5 Rf6) (57... Rb4 $11 {[%eval 3,31] and Black stays safe.}) 58. Kd3 $18 {White is clearly winning.} Kf6 59. Kc3 Ra1 60. Kb4 Rb1+ 61. Kc5 Rc1+ 62. Kb6 Rb1+ 63. Ka7 Ke7 {[#]} 64. Rb8 $1 {[%CAl Rb8b1]} Ra1 65. Rb6 Kd7 66. Kb7 Rc1 {If Black can now play ...Rc7+ this consolidates a bit.} 67. a7 {Precisão Lichess.org: Brancas 99% Pretas 91% Precisão Chess. com: Brancas 97.0% Pretas 92.2%. Precisão Chessbase: Brancas 90%, Pretas 80%. } 1-0 [Event "Magistral Osasco 2024"] [Site "Sao Paulo"] [Date "2024.03.19"] [Round "2.2"] [White "Bobadilla Viera, Jorge Samuel"] [Black "Quintiliano, Renato R."] [Result "0-1"] [ECO "E94"] [WhiteElo "2397"] [BlackElo "2483"] [Annotator "Stockfish 16"] [PlyCount "86"] [EventDate "2024.03.18"] [EventCountry "BRA"] {[%evp 13,86,42,62,12,19,19,16,19,19,16,13,12,-1,-5,4,-12,-4,-22,-23,-17,-9, -43,-29,-19,0,-173,-186,-180,-172,-186,-171,-156,-109,-135,-103,-111,-93,-114, -116,-202,-186,-182,-210,-244,-268,-371,-328,-344,-360,-361,-314,-413,-350, -368,-314,-423,-409,-492,-371,-542,-528,-526,-514,-632,-558,-757,-747,-810, -861,-858,-842,-835,-834,-29996,-29993]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Nf3 e5 7. O-O Bg4 8. Be3 {E94: King's Indian: Classical: 6 Be2 e5 7 0-0: Various Black 7th moves.} (8. d5 {feels hotter.} a5 9. Be3 Na6 10. Kh1 Nc5 11. Nd2) 8... Bxf3 9. Bxf3 ({Reject} 9. gxf3 Nh5 $15) 9... exd4 10. Bxd4 {The position is equal.} Nc6 11. Be3 Re8 $146 ({RR} 11... Nd7 12. Qd2 Nc5 13. Rae1 Re8 14. g3 a5 15. Bg2 a4 16. Nb5 {[%eval -27,15]} (16. Bg5 $14 { [%eval 57,15]} Bxc3 17. bxc3) 16... Qc8 {[%eval 56,16]} (16... Ne5 $11 { [%eval -27,15]}) 17. Qc2 Na7 18. Nxa7 Rxa7 19. f4 b6 20. e5 {[%eval -21,13]} ( 20. Re2 $14 {[%eval 67,16]}) 20... dxe5 21. Bc6 Re6 22. Bd5 Re8 23. Bxc5 bxc5 24. Qg2 exf4 25. Bxf7+ $1 Kxf7 26. Qd5+ {Saric,A (2518)-Velten,P (2487) Germany GER 2024 1/2-1/2 (54)}) 12. Qc2 Nd7 13. Rad1 Bxc3 14. Qxc3 Qf6 15. Qc2 Nc5 16. a3 $146 ({Predecessor:} 16. Rfe1 Re7 17. Qc1 Nxe4 18. Bxe4 Rxe4 19. Bg5 Qf5 20. Rxe4 Qxe4 21. Re1 Qf5 22. Bh6 {0-1 (33) Quintiliano Pinto,R (2469) -Paravyan,D (2647) Chess.com INT 2021}) 16... a5 17. Rd5 a4 18. Rfd1 b6 19. h4 $4 {[%eval -173,14] Blunder. Bg5 was best.} (19. Bg5) (19. Bg5 $11 {[%eval 0, 19]} Qe6 20. Bh6) 19... Ne5 $19 {[%CAl Bc6e5,Be5d7,Bd7f6][%mdl 32]} 20. Be2 Qxh4 21. f3 Ne6 22. Qd2 h5 23. Rf1 Nd7 24. Bf2 Qe7 25. Be3 Nf6 26. Rd3 { [%eval -202,13]} (26. Rb5 $17 {[%eval -116,14]}) 26... Nc5 27. Bxc5 bxc5 ({ Don't take} 27... dxc5 28. Rd1 $15) 28. Re3 Qe5 29. Rd1 $6 {Inaccuracy. Rd3 was best.} (29. Rd3 Rab8 30. Rb1 Kg7 31. Bd1 Ra8 32. Rc1 Ra6 33. Bc2 Ra7 34. Re1 Qxb2 35. Rc3) 29... Reb8 30. Rc3 Ra6 {[%CAl Ba8a6,Ba6b6,Bb6b2][%mdl 32]} 31. Qc1 h4 32. Bf1 $6 {Inaccuracy. f4 was best.} (32. f4 Qxe4 33. Re3 Qf5 34. Bd3 Qh5 35. Rde1 Rab6 36. b4 axb3 37. Qb2 d5 38. a4 Rd6) 32... Rab6 33. f4 Qe7 34. Re1 $6 {Inaccuracy. Bd3 was best.} (34. Bd3 Rxb2 35. Bc2 Ng4 36. e5 Ra2 37. Re1 dxe5 38. Qd1 Qe6 39. Rh3 Qxc4 40. Qxg4 Qxc2) 34... Rxb2 35. Bd3 Nh5 36. e5 {[%eval -542,14] [#]} (36. Bc2 {[%eval -371,18] was necessary.}) 36... h3 $1 37. Bc2 (37. gxh3 Qh4) 37... hxg2 {And now ...Qh4 would win.} 38. e6 Qh4 39. e7 Re8 40. Kxg2 Nxf4+ 41. Kf3 Qh3+ 42. Kxf4 Qxc3 {[%mdl 64] [#] Double Attack} 43. Bxa4 $4 {Checkmate is now unavoidable. Re2 was best.} (43. Re2 Rxe7 44. Rxe7 Rxc2 45. Qxc2 Qxc2 46. Rxc7 Qxc4+ 47. Kg3 Qd3+ 48. Kf4 Kg7 49. Ra7 Qxa3) 43... Qf6+ {Precisão Lichess.org: Brancas 97% Pretas 91% Precisão Chess.com: Brancas 84.4% Pretas 93.9%. Precisão Chessbase: Brancas 51%, Pretas 86%.} 0-1 [Event "Magistral Osasco 2024"] [Site "Sao Paulo"] [Date "2024.03.19"] [Round "2.3"] [White "Fier, Alexandr"] [Black "De Carvalho, Vitor Augusto Ponci"] [Result "1-0"] [ECO "A16"] [WhiteElo "2561"] [BlackElo "2134"] [Annotator "Stockfish 16"] [PlyCount "72"] [EventDate "2024.03.18"] [EventCountry "BRA"] {[%evp 9,72,45,92,45,75,75,92,51,48,49,56,56,61,9,8,-16,49,-19,258,12,3,-21, -25,-35,0,0,6,13,4,-11,0,0,0,0,0,0,0,0,0,0,0,-3,8,7,8,10,26,31,59,63,71,66,77, 79,137,119,139,127,449,443,498,475,503,471,516]} 1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. Nf3 g6 5. h4 Nc6 $146 ({RR} 5... Nxc3 6. bxc3 Bg7 7. h5 O-O 8. Qa4 e5 9. hxg6 hxg6 10. Ba3 Re8 11. Ng5 e4 $1 12. Nxe4 b5 13. Qc2 $1 Bf5 14. d3 Bxe4 15. dxe4 a5 {[%eval 54,16]} (15... c5 $15 {[%eval -35,13]}) 16. e3 b4 17. Bb2 Nc6 18. Bb5 Re6 19. Bc4 Rd6 20. Bd5 {[%eval -15,18] Yoo,C (2595)-Kandil,A (2201) chess.com INT 2024 0-1 (40)} (20. f4 $16 {[%eval 122,14]})) ({RR} 5... Bg7 6. h5 O-O ({RR} 6... Nc6) 7. hxg6 hxg6 8. Qb3 Nb6 9. g3 ({RR} 9. d4 {RR} Nc6 10. d5 $1 {[%CAl Rd5c6]} Na5 11. Qb5 Nac4 12. e4 c6 13. Qc5 {[%eval -32,16] } (13. dxc6 $16 {[%eval 107,15]} bxc6 14. Qg5) 13... cxd5 $2 {[%eval 145,14]} ( 13... Qd6 $15 {[%eval -32,16] keeps the upper hand.} 14. Qxd6 exd6) 14. exd5 $2 {[%eval -163,15][%mdl 8192]} (14. Bxc4 $1 $16 {[%eval 145,14] and life is bright.} Nxc4 15. Nxd5) 14... Bf5 15. Qb4 {[%eval -263,18]} (15. Bxc4 $17 { [%eval -158,16]} Rc8 16. Qa5 Nxc4 17. Qxa7)) 9... c5 10. d3 Nc6 11. Bg2 Bg4 12. Be3 ({RR} 12. Qd1) 12... Bxf3 {[%eval 42,17]} ({RR} 12... Nd4 $1 13. Bxd4 cxd4) (12... Nd4 $1 $15 {[%eval -68,18]} 13. Bxd4 cxd4) 13. Bxf3 Nd4 14. Bxd4 $1 Qxd4 15. Rh4 Qe5 16. a4 Rab8 17. Re4 Qg5 18. Rg4 Qe5 19. a5 c4 {[%eval 138,15]} ({RR } 19... Nd7 $1) (19... Nd7 $1 $14 {[%eval 39,17]}) 20. Qb4 {Mekhitarian,K (2559)-Lima,S (2155) Recife 2023 1-0 (61)} ({RR} 20. dxc4 {[%eval 50,17] 20. Qb4 1.42} Nd7)) ({RR} 5... Bg7 6. h5 Nc6 7. g3 e5 8. h6 Bf8 9. Bg2 Be6 10. d4 Bb4 11. O-O Bxc3 12. bxc3 Nxc3 13. Qc2 exd4 14. Bb2 Bf5 15. e4 Bg4 $1 16. Nh2 { [%eval -76,16]} (16. e5 $14 {[%eval 32,16]}) 16... Be6 {[%eval 41,16]} (16... Ne2+ $1 $17 {[%eval -76,16]} 17. Kh1 Qd7) 17. Bxc3 dxc3 18. Nf3 Qe7 {[%eval 86, 13]} (18... Qf6 $11 {[%eval -23,15] keeps the balance.} 19. e5 Qe7) 19. Rfd1 $2 {[%eval -97,14]} (19. Qxc3 $16 {[%eval 86,13]} O-O-O 20. Rab1) 19... Qc5 20. Rab1 {[%eval -130,16] Shen,F (1612)-Chen,Z (1613) Shanghai CHN 2024 1-0 (31)} ( 20. Rd3 $11 {[%eval -25,18]})) 6. h5 {A16: English Opening: 1...Nf6 with ...d5. } Nxc3 7. bxc3 Bg7 8. d4 {White is better.} e5 {[%CAl Re5d4]} 9. Bg5 $146 ({ Predecessor:} 9. e3 O-O 10. Be2 exd4 11. cxd4 Nb4 12. Bd2 c5 13. Rc1 b6 14. a3 Nd5 15. dxc5 bxc5 16. Rxc5 {1-0 (26) Gukesh,D (2637)-Mikhalevski,V (2554) La Roda 2022}) 9... Bf6 10. Bxf6 Qxf6 11. e3 Bg4 {...e4 is the strong threat.} 12. hxg6 e4 $6 {Inaccuracy. O-O-O was best.} (12... O-O-O) 13. gxf7+ ({Worse is} 13. Rxh7 O-O-O $17) 13... Qxf7 $4 {[%eval 258,16] [#] Blunder. Kd8 was best.} ( 13... Kd8 14. Be2) (13... Ke7 $11 {[%eval -19,17] and Black stays safe.}) 14. Ng5 $4 {[%eval 12,16] Blunder. Qb1 was best.} (14. Qb1 $1 {[%CAl Rb1b7]} Qg6 15. Nd2 O-O-O 16. Qxe4 Bf5 17. Qf4 Rhf8 18. Qh6 Qe8 19. Nc4 Kb8 20. f3 { [%eval 85,17]} (20. Rc1 $18 {[%eval 212,16] is more deadly.}) 20... b5) (14. Qb1 $1 $18 {[%eval 258,16]}) 14... Qf5 $11 15. Qb1 Qxg5 16. Qxe4+ Kf8 17. Rxh7 Rxh7 18. Qxh7 Re8 $132 {[%mdl 2048] Black is not keeping still} 19. Kd2 Nxd4 { Hoping for ...Ne6.} 20. f4 Qf6 21. cxd4 {Black must now prevent Bc4.} c5 22. Bc4 {Threatens to win with Qg8+.} ({Avoid the trap} 22. Qxb7 $2 {[#]} Rxe3 $3 { [%mdl 512]} 23. Qa8+ Re8 $19) 22... Rxe3 23. Qg8+ {[%mdl 64] Double Attack} Ke7 24. Qg5 Qxg5 25. fxg5 {[%mdl 4096] Endgame KRB-KRB} Rg3 26. dxc5 Rxg2+ 27. Kc3 Bh5 28. Re1+ Kd8 29. Re5 Rg3+ 30. Kd2 Bg6 31. Bd5 b6 $6 {Inaccuracy. Kc7 was best.} (31... Kc7) 32. c6 a5 33. Ke2 b5 $4 {[%eval 449,14] Blunder. Bc2 was best.} (33... Bc2 34. a4) (33... Rc3 $16 {[%eval 127,15] is more resistant.} 34. Re6 Bb1) 34. Bf3 $18 {White is clearly winning.} Bf7 $6 {Inaccuracy. Rg1 was best.} (34... Rg1 35. Rxb5 Rc1 36. Ke3 Rc3+ 37. Kf4 a4 38. Bd5 Be8 39. Ra5 Bxc6 40. Bxc6 Rxc6 41. Rxa4) 35. Kf2 Rh3 36. Rxb5 Bxa2 {Precisão Lichess.org: Brancas 92% Pretas 87% Precisão Chess.com: Brancas 92.5% Pretas 84.7%. Precisão Chessbase: Brancas 73%, Pretas 60%.} 1-0 [Event "Magistral Osasco 2024"] [Site "Sao Paulo"] [Date "2024.03.19"] [Round "2.4"] [White "Molina, Roberto Junio Brito"] [Black "Di Berardino, Diego Rafael"] [Result "1-0"] [ECO "D37"] [WhiteElo "2376"] [BlackElo "2497"] [Annotator "Stockfish 16"] [PlyCount "61"] [EventDate "2024.03.18"] [EventCountry "BRA"] {[%evp 12,61,38,37,45,17,17,19,14,11,36,38,57,44,58,26,18,15,17,23,31,15,34,32, 30,16,11,-12,-23,-15,7,4,3,-3,0,4,4,0,41,45,34,14,12,13,17,13,14,16,213,195, 374,377]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 ({RR} 4. g3 dxc4 5. Bg2 c5 6. O-O Nc6 7. dxc5 Qxd1 8. Rxd1 Bxc5 9. Nbd2 c3 10. bxc3 O-O 11. Nb3 Be7 12. c4 Bd7 13. Bb2 Rfd8 14. c5 Rac8 15. Rac1 Be8 16. Ne5 Rxd1+ 17. Rxd1 Nxe5 18. Bxe5 Bxc5 {Matveev,V (2368)-Baches Garcia,G (2329) chess.com INT 2020 1-0 (38)}) 4... Nbd7 $146 ({RR} 4... a6 5. cxd5 exd5 6. Bg5 Be6 7. e3 Nbd7 8. Bd3 Bd6 9. O-O c6 10. Bf4 Qc7 11. Qd2 O-O 12. h3 Rfe8 13. b4 Nb6 14. Ne2 h6 15. Qc2 Nc4 16. Nd2 Nxd2 17. Qxd2 Ne4 18. Qc2 Bxf4 19. Nxf4 {Johannsson,B (1988)-Halfhide,S (2263) Bratislava SVK 2019 1/2-1/2 (55)}) 5. cxd5 exd5 6. Bg5 Bb4 7. e3 h6 {D38: Queen's Gambit Declined: Ragozin Defence (4 Nf3 Bb4).} 8. Bxf6 Qxf6 9. a3 Bxc3+ $1 {The position is equal.} 10. bxc3 Nb6 $146 ({Predecessor:} 10... O-O 11. Bd3 c5 12. g4 Re8 13. h4 Qd6 14. g5 h5 15. Kd2 g6 16. Qa4 Re7 {1/2-1/2 (31) Anton Guijarro,D (2669)-Pichot,A (2648) Linares 2023}) 11. Be2 c5 12. O-O c4 13. Nd2 O-O 14. e4 dxe4 15. Nxe4 Qe7 16. Bf3 Be6 17. Re1 Qc7 18. Nc5 Bd5 $1 19. Bxd5 Nxd5 20. Qf3 Rad8 21. Rab1 b6 22. Na6 Qf4 23. Qxf4 Nxf4 24. Nb4 Rd6 25. g3 $36 {[%mdl 2048] White has the initiative.} Ne6 26. a4 {[%CAl Ba3a4,Ba4b5][%mdl 32] } Nc7 27. Rbc1 Rc8 28. Nc2 b5 29. Ne3 {[#] Strongly threatening Nf5.} a6 $4 { [%eval 213,21] Blunder. Ra6 was best.} (29... Ra6 30. axb5 Nxb5 31. Nf5 Rb8 32. Re5 Ra3 33. Kg2 Rxc3 34. Rxb5 Rxb5 35. Nxh6+ gxh6 36. Rxc3) (29... g6 $11 { [%eval 16,14] and Black is okay.}) 30. axb5 Rb6 $2 {[%eval 374,14] Mistake. Rf6 was best.} (30... Rf6 31. bxa6 Rxa6 32. Kg2 g6 33. Rb1 Ra3 34. Rec1 Ne8 35. Rb6 Kg7 36. Kf3 h5 37. Rc2) (30... Rf6 $142 {[%eval 195,17]} 31. bxa6 (31. Nxc4 Nxb5 32. Ne3 Kf8 $14) 31... Rxa6) 31. Nxc4 {Precisão Lichess.org: Brancas 98% Pretas 87% Precisão Chess.com: Brancas 97.5% Pretas 91.7%. Precisão Chessbase: Brancas 79%, Pretas 62%.} 1-0 [Event "Magistral Osasco 2024"] [Site "Sao Paulo"] [Date "2024.03.19"] [Round "2.5"] [White "Valderrama Quiceno, Esteban Alb"] [Black "Do Valle Cardoso, Lucas"] [Result "1/2-1/2"] [ECO "A28"] [WhiteElo "2428"] [BlackElo "2406"] [Annotator "Stockfish 16"] [PlyCount "120"] [EventDate "2024.03.18"] [EventCountry "BRA"] {[%evp 18,120,2,4,15,-10,-7,-21,20,0,22,21,20,0,0,0,2,2,3,3,6,1,12,16,12,12,25, 13,16,9,10,10,12,10,17,4,4,4,4,4,4,4,4,4,4,4,6,5,5,4,6,6,7,4,6,0,0,0,0,0,0,0,0, 0,0,0,6,2,0,0,0,0,0,0,0,0,0,0,0,0,3,0,0,0,3,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0]} 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 $146 ({RR} 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 O-O 8. Rc1 Ne5 9. a3 Bxc3+ 10. Rxc3 Ng6 11. Bxf6 Qxf6 12. g3 d6 13. Bg2 a5 14. O-O a4 15. c5 dxc5 16. Rxc5 Rd8 17. e3 Qb6 18. Qc2 c6 { Cyborowski,L (2411)-Voloshin,L (2455) Legnica 2000 0-1 (60)}) 4... Bb4 5. Qc2 Bxc3 6. Qxc3 Qe7 7. a3 d5 8. d4 Nxd4 9. Nxd4 exd4 10. Qxd4 O-O {A28: English Opening: Four Knights Variation.} 11. cxd5 Rd8 12. Be2 c5 13. Qh4 Nxd5 $146 ({ Predecessor:} 13... Rxd5 14. f3 Be6 15. e4 Rd7 16. O-O Nd5 17. Qf2 Nc7 18. Be3 b6 19. f4 f5 20. exf5 Bxf5 {1-0 (34) Moradiabadi,E (2539)-Percivaldi,M (2386) Stockholm 2019}) 14. Qxe7 Nxe7 15. b4 cxb4 16. axb4 Nc6 17. b5 Ne5 18. O-O Bf5 19. Bb2 Bd3 (19... Rd2 20. Bxe5 Rxe2 21. h4 a5 22. bxa6 Rxa6 23. Rxa6 bxa6 24. Ra1) 20. Bxd3 Nxd3 21. Bd4 b6 22. g3 h5 {The position is equal.} 23. Ra4 Nc5 24. Bxc5 bxc5 $11 {[%mdl 4096] Endgame KRR-KRR} 25. Rc1 Rdc8 26. Rac4 Rab8 27. Rxc5 Rxc5 (27... Rc7 $2 {[%eval 604,17][%mdl 8192] 27...Rxc5 0.04} 28. Rc6 $2 { [%eval 4,19]} (28. Rxc7 $18 {[%eval 604,17]} Rxb5 29. Rxa7) 28... Rxc6 29. Rc5 $2 {[%eval -1011,15][%mdl 8192]} (29. bxc6 $14 {[%eval 35,20]} Rc8 30. Kg2)) 28. Rxc5 {KR-KR} g6 29. Kg2 Rb6 30. Kf3 a6 31. bxa6 Rxa6 32. h3 Kg7 33. g4 hxg4+ 34. hxg4 Ra2 35. Kg3 Re2 36. Rc7 g5 37. Rc6 Kh7 38. Kf3 Ra2 39. Rf6 Kg7 40. Rf5 Kg6 41. Rd5 Rb2 42. Kg3 Re2 43. Rd3 Re1 44. f4 gxf4+ 45. exf4 Ra1 46. Rd6+ Kg7 47. Kh4 Ra5 48. Rd7 Rb5 49. Re7 Kf6 50. Re8 Rb4 51. Kg3 Rb3+ 52. Kf2 Kg7 53. Re3 Rb4 54. Kf3 Ra4 55. g5 f6 56. Re7+ Kf8 57. gxf6 Ra6 58. Kg4 Rxf6 59. Rb7 (59. Rc7) 59... Ra6 60. Kg5 Rc6 {Precisão Lichess.org: Brancas 99% Pretas 99% Precisão Chess.com: Brancas 99.1% Pretas 99.1%. Precisão Chessbase: Brancas 96%, Pretas 96%.} 1/2-1/2