[Event "2024 Spring Marathon"] [Site "https://lichess.org/hEBCV5pm"] [Date "2024.05.11"] [White "alonsochessclub1"] [Black "Zhigalko_Sergei"] [Result "0-1"] [UTCDate "2024.05.11"] [UTCTime "00:31:30"] [WhiteElo "2177"] [BlackElo "2802"] [WhiteRatingDiff "+0"] [BlackRatingDiff "+1"] [BlackTitle "GM"] [Variant "Standard"] [TimeControl "300+0"] [ECO "B30"] [Opening "Sicilian Defense: Old Sicilian"] [Termination "Normal"] [Annotator "lichess.org"] 1. e4 c5 2. Nf3 Nc6 { B30 Sicilian Defense: Old Sicilian } 3. c3 Nf6 4. d3 g6 5. h3 Bg7 6. Be2 O-O 7. O-O d6 8. Be3 Rb8 9. Re1 b5 10. Nbd2 a5 11. Nf1 b4 12. Qd2 Re8 13. Ng3 a4 14. Bh6 Bh8 15. Rad1? { (-0.19 → -1.35) Mistake. Rab1 was best. } (15. Rab1 Be6) 15... a3 16. bxa3?! { (-1.28 → -2.50) Inaccuracy. d4 was best. } (16. d4 axb2) 16... bxc3 17. Qxc3 Nxe4 18. Qc1 Nxg3 19. fxg3 Be6 20. d4 Nxd4 21. Nxd4 Bxd4+ 22. Kh2 Qa5 23. Bf3 Qc3 24. Qg5 Bf6 25. Qe3?! { (-2.64 → -3.62) Inaccuracy. Qf4 was best. } (25. Qf4 Red8 26. Bc6 Rb2 27. Qf1 Be5 28. Re3 Qc4) 25... Qxe3 26. Rxe3 Bxa2 27. Bc6 Rec8 28. Bd7 Rc7 29. Bg4 Bd4 30. Rf3 f5 31. Bxf5 gxf5 32. Rxf5 Bf6 33. Re1 Bb1 34. Rf4 Bg6 35. h4 c4 36. Kh3 Rb3 37. Rg4 Kf7 38. Rf4 c3 39. g4 c2+ 40. Rf3 Rxf3+ 41. gxf3 Bb2 42. h5 Bd3 43. Bc1 Bxc1 44. Rxc1 Rb7 45. Kh4 Rb1 46. Rxc2 Bxc2 47. a4 Ra1 48. a5 Rxa5 49. f4 h6 50. g5?? { (-5.82 → Mate in 11) Checkmate is now unavoidable. Kg3 was best. } (50. Kg3 Bd1 51. Kh3 d5 52. g5 d4 53. gxh6 Rxh5+ 54. Kg2 Bc2 55. h7 Bxh7) 50... hxg5+ 51. fxg5 Ra4+ 52. Kg3 e5 53. h6 Kg6 54. h7 Kxh7 55. Kf3 Kg6 56. Kg3 Rf4 57. Kh3 Kxg5 58. Kg3 d5 59. Kh3 d4 60. Kg3 d3 61. Kh3 d2 62. Kh2 d1=Q 63. Kg2 Qf3+ 64. Kh2 Rh4+ 65. Kg1 Rh1# { Black wins by checkmate. } 0-1