[Event "IM riverakuzawka simul"] [Site "https://lichess.org/CtRZgtyT"] [Date "2021.05.24"] [White "riverakuzawka"] [Black "Juan_Duenas"] [Result "1-0"] [UTCDate "2021.05.24"] [UTCTime "17:47:00"] [WhiteElo "1894"] [BlackElo "1816"] [WhiteTitle "IM"] [Variant "Standard"] [TimeControl "600+3"] [ECO "B92"] [Opening "Sicilian Defense: Najdorf Variation, Opocensky Variation"] [Termination "Normal"] [Annotator "lichess.org"] 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be6 8. Be3 { B92 Sicilian Defense: Najdorf Variation, Opocensky Variation } Nc6 9. Qd2 Be7 10. O-O-O O-O 11. f4?! { (1.07 → 0.25) Inaccuracy. Kb1 was best. } (11. Kb1) 11... exf4 12. Bxf4 Bg4? { (0.22 → 1.57) Mistake. Ne5 was best. } (12... Ne5 13. Rhg1) 13. Bxg4 Nxg4 14. Nd5 Nge5 15. h3 h6?! { (1.00 → 1.62) Inaccuracy. Bf6 was best. } (15... Bf6 16. Qe2) 16. g4 Bg5 17. h4?? { (1.24 → -0.67) Blunder. Kb1 was best. } (17. Kb1) 17... Nc4?? { (-0.67 → 1.60) Blunder. Bxh4 was best. } (17... Bxh4 18. Kb1 Bg5 19. Qf2 Bxf4 20. Nxf4 Qf6 21. g5 Qxg5 22. Rdg1 Qf6 23. Qg2 Ng6 24. Nd5) 18. Bxg5? { (1.60 → 0.45) Mistake. Qc3 was best. } (18. Qc3) 18... hxg5?? { (0.45 → 4.43) Blunder. Nxd2 was best. } (18... Nxd2 19. Bxd8) 19. Qxg5?? { (4.43 → 1.93) Blunder. Qe2 was best. } (19. Qe2 b5) 19... Qxg5+ 20. hxg5 N4e5? { (1.76 → 3.12) Mistake. Rae8 was best. } (20... Rae8 21. Nd2 N4e5 22. Rh5 Ng6 23. Rdh1 Nce5 24. Ne3 Rc8 25. a4 f6 26. Nf5 fxg5 27. Rxg5) 21. Rh3?! { (3.12 → 2.07) Inaccuracy. Nd4 was best. } (21. Nd4) 21... Ng6 22. Nb6 Rad8 { Black offers draw } 23. Rhd3? { (1.56 → 0.17) Mistake. Nc4 was best. } (23. Nc4) 23... Nb4?? { (0.17 → 2.83) Blunder. Rfe8 was best. } (23... Rfe8) 24. Rxd6 Rxd6 25. Rxd6 Nxa2+ 26. Kd2 Re8 27. Nc5 Ne5 28. c3 Nxg4 29. g6 Ne5?! { (2.49 → 3.42) Inaccuracy. fxg6 was best. } (29... fxg6 30. Rd4) 30. gxf7+ Nxf7 31. Rd7 Ne5 32. Rxb7 Rf8 33. Ne6?! { (3.70 → 2.62) Inaccuracy. Ke3 was best. } (33. Ke3) 33... Rf7?? { (2.62 → 6.61) Blunder. Rf6 was best. } (33... Rf6 34. Rb8+) 34. Rb8+ Kh7 35. Ng5+ Kg6 36. Nxf7 Kxf7 37. Rb7+ Kf6 38. Nd5+ Kg5 39. Rxg7+ Kh4 40. Ra7 Nf3+ 41. Kc2 Ne1+ 42. Kb1 Nd3 43. Kxa2 Nc1+ 44. Ka3 Nd3 45. Rxa6 Nc5 46. Rc6 Nxe4?! { (13.22 → Mate in 11) Checkmate is now unavoidable. Nd3 was best. } (46... Nd3 47. b4) 47. b4?! { (Mate in 11 → 61.09) Lost forced checkmate sequence. Rc4 was best. } (47. Rc4 Kg4 48. Rxe4+ Kf5 49. Re1 Kg4 50. b4 Kf3 51. b5 Kg3 52. b6 Kf3 53. b7 Kf2) 47... Ng5?! { (61.09 → Mate in 14) Checkmate is now unavoidable. Ng3 was best. } (47... Ng3 48. Rg6) 48. b5?! { (Mate in 14 → 69.19) Lost forced checkmate sequence. Rh6+ was best. } (48. Rh6+ Kg4 49. Rg6 Kf5 50. Rxg5+ Kxg5 51. b5 Kf5 52. b6 Ke4 53. c4 Kd4 54. Kb3 Ke4) 48... Nf7 49. b6 Nd8 50. Rc7 Kg5 51. Rd7?! { (Mate in 11 → 74.48) Lost forced checkmate sequence. b7 was best. } (51. b7 Nxb7 52. Rxb7 Kf5 53. Re7 Kg4 54. c4 Kg3 55. c5 Kf2 56. c6 Kg2 57. c7 Kg1) 51... Nc6 52. Nb4 Nb8 53. Rb7 Kf5 54. Rxb8 Ke6 55. Rd8 Ke7 56. Rd5 Ke6 57. b7 Kf6 58. b8=Q Ke6 59. Qd6+ Kf7 60. Rf5+ Kg7 61. Qf6+ Kg8 62. Rg5+ Kh7 63. Qg7# { White wins by checkmate. } 1-0