[Event "2024 Spring Marathon"] [Site "https://lichess.org/uQsQMIXF"] [Date "2024.05.11"] [White "SASSANID_EMPIRE"] [Black "chess_Leo"] [Result "0-1"] [UTCDate "2024.05.11"] [UTCTime "15:59:07"] [WhiteElo "2311"] [BlackElo "1927"] [WhiteRatingDiff "-28"] [BlackRatingDiff "+15"] [Variant "Standard"] [TimeControl "300+0"] [ECO "A08"] [Opening "Zukertort Opening: Reversed Grünfeld"] [Termination "Normal"] [Annotator "lichess.org"] 1. Nf3 d5 2. g3 Nf6 3. Bg2 c5 4. O-O Nc6 5. d4 { A08 Zukertort Opening: Reversed Grünfeld } e6 6. c4 dxc4 7. Qa4 Bd7 8. Qxc4 cxd4 9. Nxd4 Rc8 10. Nxc6 Bxc6 11. Bxc6+ Rxc6 12. Qa4 Bc5 13. Rd1 Qb6 14. e3 O-O 15. Nc3 a6 16. b3?? { (-0.42 → -2.20) Blunder. Bd2 was best. } (16. Bd2 h5 17. Rab1 Rd8 18. Be1 Rxd1 19. Qxd1 Bd6 20. Ne2 Be5 21. b3 g5) 16... Bb4 17. Ne2 Qc5 18. Bb2?? { (-0.34 → -4.03) Blunder. Bd2 was best. } (18. Bd2 Bxd2) 18... b5 19. Bd4 Qe7 20. Bxf6 gxf6 21. Nd4 Rb6 22. Qxb4 Qxb4 23. a3 Qe7 24. b4 Rc8 25. Nb3 Rd6 26. Nc5 Rxd1+ 27. Rxd1 Rxc5 28. bxc5 Qxc5 29. Rd3 Qc4 30. Rd6 a5 31. Ra6 b4 32. Rxa5 bxa3 33. Kg2 a2 34. h4 Qc6+ 35. Kh2 Qc2 36. Kh3 Qb2 37. Kg4?? { (-5.91 → Mate in 7) Checkmate is now unavoidable. Ra8+ was best. } (37. Ra8+ Kg7 38. h5 Qxf2 39. h6+ Kxh6 40. Rg8 Qf5+ 41. g4 Qf1+ 42. Kg3) 37... a1=Q?? { (Mate in 7 → -6.53) Lost forced checkmate sequence. Qb4+ was best. } (37... Qb4+ 38. Kh3 Qxa5 39. Kg2 a1=Q 40. g4 Q5e1 41. g5 Qad1 42. Kg3 Qh1 43. gxf6) 38. Kh5?? { (-6.53 → Mate in 3) Checkmate is now unavoidable. Rxa1 was best. } (38. Rxa1 Qxa1 39. Kf3 Qh1+ 40. Ke2 Kg7 41. g4 Qxh4 42. e4 Qxg4+ 43. Ke3 Qh3+) 38... Qe5+ 39. Kh6 Qaxa5 40. g4 f5 41. g5 Qg7+ 42. Kh5 Qg6# { Black wins by checkmate. } 0-1