[Event "Arsenic simul"] [Site "https://lichess.org/J6fAVyvk"] [Date "2016.05.26"] [White "a_santos"] [Black "Grandmasterreturn"] [Result "0-1"] [UTCDate "2016.05.26"] [UTCTime "15:04:05"] [WhiteElo "2110"] [BlackElo "2202"] [Variant "Standard"] [TimeControl "1200+0"] [ECO "B93"] [Opening "Sicilian Defense: Najdorf Variation, Amsterdam Variation"] [Termination "Normal"] [Annotator "lichess.org"] 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 { B93 Sicilian Defense: Najdorf Variation, Amsterdam Variation } Nc6 7. Be3 Bg4?! { (0.08 → 0.80) Inaccuracy. Ng4 was best. } (7... Ng4 8. Qd2 e5 9. Nf3 Nxe3 10. Qxe3 exf4 11. Qxf4 Be7 12. Nd5 g5 13. Qe3 g4 14. Nxe7) 8. Qd2 e5 9. Nxc6 bxc6 10. h3 Bd7 11. Bc4 Be7 12. O-O-O Qc7?! { (0.87 → 1.46) Inaccuracy. exf4 was best. } (12... exf4 13. Bxf4 Nh5 14. Be3 O-O 15. g4 Nf6 16. Bf4 Ne8 17. Kb1 a5 18. g5 Be6 19. Bxe6) 13. g4 h6 14. g5?! { (1.51 → 0.81) Inaccuracy. Rhf1 was best. } (14. Rhf1 Be6 15. Bxe6 fxe6 16. fxe5 dxe5 17. Qe2 O-O 18. Qc4 Kh8 19. Qxe6 Bb4 20. Ne2 Rae8) 14... hxg5 15. fxg5 Nh5 16. Qf2 Rf8 17. Be2 g6 18. Bxh5 gxh5 19. Qh4 Rh8 20. Qf2 Be6 21. Kb1 Rb8 22. Rhf1 Qb7 23. b3 Qb4 24. Bd2 Qc5 25. Qg3 h4 26. Qg2 Rg8 27. Na4 Qa3?! { (0.00 → 0.79) Inaccuracy. Qd4 was best. } (27... Qd4 28. Nb2 a5 29. Bc1 Qb4 30. Bd2 Qb5 31. Ka1 Qc5 32. Bc1 Qb4 33. Bd2 Qd4 34. Bc1) 28. Nc3?! { (0.79 → 0.09) Inaccuracy. Ka1 was best. } (28. Ka1 d5 29. Qf2 d4 30. Bc1 Qd6 31. Qxh4 c5 32. c4 Kd7 33. Qg3 f6 34. h4 fxg5) 28... Kd7? { (0.09 → 1.50) Mistake. Qc5 was best. } (28... Qc5 29. Qf3 d5 30. Qh5 d4 31. Na4 Qd6 32. Qh7 Kd7 33. Rxf7 Bxf7 34. Qxf7 Rgf8 35. Qh5) 29. Qf2? { (1.50 → 0.32) Mistake. Nd5 was best. } (29. Nd5 Bd8 30. Nf6+ Bxf6 31. Rxf6 Rg6 32. Rxg6 fxg6 33. Qf2 Qc5 34. Qxh4 d5 35. Rf1 d4) 29... Bxb3?? { (0.32 → 6.72) Blunder. Kc7 was best. } (29... Kc7 30. Bc1 Qa5 31. Qe1 Kb7 32. Rd3 Ka8 33. Rg1 Bc4 34. Rf3 Be6 35. Bd2 Qa3 36. Rd3) 30. Qa7+ Ke6 31. cxb3 Ra8?! { (5.98 → 14.24) Inaccuracy. Qc5 was best. } (31... Qc5 32. Qxa6 Rg7 33. Rc1 Qb6 34. Qa4 Kd7 35. Nd5 Qb5 36. Qxb5 Rxb5 37. Nxe7 Kxe7 38. Rxc6) 32. Qf2 Kd7 33. Qf5+ Kc7 34. Qxf7 Rge8 35. g6 Rab8 36. Nd5+ cxd5 37. Rc1+ Kd7 38. Qxd5 Rb5 39. Qc6+ Ke6 40. Rc3 Reb8 41. Qc4+ Kd7?! { (15.18 → Mate in 15) Checkmate is now unavoidable. d5 was best. } (41... d5 42. exd5+ Rxd5 43. Rc2 a5 44. g7 Qc5 45. Qg4+ Kd6 46. Rxc5 Rxc5 47. g8=Q Rxg8 48. Qxg8) 42. Rf7 d5 43. Qc6+ Kd8 44. g7 Rxb3+ 45. axb3 Rxb3+ 46. Rxb3?? { (Mate in 11 → 0.00) Lost forced checkmate sequence. Kc2 was best. } (46. Kc2 Rb2+ 47. Kd3 Rxd2+ 48. Kxd2 Qb2+ 49. Ke1 Qb1+ 50. Kf2 Qb2+ 51. Kg1 Qb1+ 52. Rf1 Bc5+) 46... Qxb3+ 47. Kc1?? { (0.00 → Mate in 1) Checkmate is now unavoidable. Ka1 was best. } (47. Ka1 Qa3+ 48. Kb1 Qb3+ 49. Ka1 Qa3+ 50. Kb1 Qb3+) 47... Ba3# { Black wins by checkmate. } 0-1