[Event "2023 Summer Marathon"] [Site "https://lichess.org/He6qRkX6"] [Date "2023.08.05"] [White "Mangusty"] [Black "Zhigalko_Sergei"] [Result "1-0"] [UTCDate "2023.08.05"] [UTCTime "20:35:42"] [WhiteElo "2458"] [BlackElo "3147"] [WhiteRatingDiff "+12"] [BlackRatingDiff "-11"] [WhiteTitle "IM"] [BlackTitle "GM"] [Variant "Standard"] [TimeControl "60+0"] [ECO "B33"] [Opening "Sicilian Defense: Lasker-Pelikan Variation"] [Termination "Normal"] [Annotator "lichess.org"] 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 { B33 Sicilian Defense: Lasker-Pelikan Variation } 6. Ndb5 d6 7. Nd5 Nxd5 8. exd5 Nb8 9. a4 Be7 10. Be2 O-O 11. O-O Nd7 12. Bd2 f5 13. a5 f4 14. f3 Nf6 15. Be1?! { (0.53 → -0.05) Inaccuracy. c4 was best. } (15. c4 a6) 15... Bf5?! { (-0.05 → 0.66) Inaccuracy. a6 was best. } (15... a6 16. Na3 Bf5 17. Bd3 Bxd3 18. Qxd3 Qc7 19. Kh1 Rae8 20. Nc4 g5 21. Bf2 Bd8 22. Nd2) 16. Bd3 Qd7 17. c4 Kh8?! { (0.31 → 0.95) Inaccuracy. Bxd3 was best. } (17... Bxd3) 18. Bf2 g5 19. a6 b6 20. b4 g4?! { (-0.16 → 0.41) Inaccuracy. Bxd3 was best. } (20... Bxd3 21. Qxd3) 21. Bxf5 Qxf5 22. Qb1?? { (0.44 → -1.25) Blunder. c5 was best. } (22. c5) 22... Qg5 23. Ra3 Rg8 24. g3 Nh5 25. Nc7? { (-0.64 → -2.04) Mistake. c5 was best. } (25. c5 bxc5) 25... Rac8 26. Ne6 Qf5?? { (-1.49 → 7.45) Blunder. Qh6 was best. } (26... Qh6) 27. Qxf5 Nf6 28. fxg4 Nxg4 29. Kh1 Nh6 30. Qe4 Rg6 31. gxf4 Rcg8 32. Rg1 Ng4 33. Be1 Bf6 34. f5 Nf2+ 35. Bxf2 Rxg1+ 36. Bxg1 h6?! { (10.23 → Mate in 8) Checkmate is now unavoidable. Rg7 was best. } (36... Rg7 37. Nxg7 b5 38. Ne6 bxc4 39. Qxc4 h5 40. Rh3) 37. Rg3?! { (Mate in 8 → 13.16) Lost forced checkmate sequence. Rh3 was best. } (37. Rh3 Kh7 38. Be3 Rg1+ 39. Bxg1 Kg8 40. Qg4+ Kf7 41. Rxh6 Ke8 42. Qg8+ Kd7 43. Rxf6 Ke7) 37... Kh7 38. Rg6 Bg7 39. Qg4 h5 40. Qxh5+ Bh6 41. Qxh6# { White wins by checkmate. } 1-0