[Event "2023 Winter Marathon"] [Site "https://lichess.org/VGKNMpLF"] [Date "2023.12.29"] [White "BorisVasilevich"] [Black "PrestonX"] [Result "0-1"] [UTCDate "2023.12.29"] [UTCTime "02:15:29"] [WhiteElo "1877"] [BlackElo "1449"] [WhiteRatingDiff "-10"] [BlackRatingDiff "+34"] [Variant "Standard"] [TimeControl "180+0"] [ECO "B21"] [Opening "Sicilian Defense: McDonnell Attack"] [Termination "Normal"] [Annotator "lichess.org"] 1. e4 c5 2. f4 { B21 Sicilian Defense: McDonnell Attack } d5 3. e5?! { (0.00 → -0.59) Inaccuracy. Bb5+ was best. } (3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. d3 e6 6. Nf3 Bd6 7. O-O Nc6) 3... Nh6 4. Nf3 Nc6 5. Bb5 Nf5 6. O-O e6 7. c3 a6 8. Bxc6+ bxc6 9. d4 cxd4 10. cxd4 c5 11. Nc3 Qb6?? { (-1.48 → 0.21) Blunder. cxd4 was best. } (11... cxd4 12. Ne2 Qb6 13. Kh1 Bc5 14. g4 Ne3 15. Bxe3 dxe3 16. Ned4 Bd7 17. Rb1 h5 18. gxh5) 12. dxc5? { (0.21 → -1.05) Mistake. Na4 was best. } (12. Na4 Qb5) 12... Qxc5+ 13. Kh1 Be7 14. Bd2?! { (-0.07 → -0.78) Inaccuracy. Ne2 was best. } (14. Ne2 O-O 15. Ned4 Nxd4 16. Nxd4 Qb6 17. b3 f6 18. Be3 fxe5 19. fxe5 Rxf1+ 20. Qxf1 Bd7) 14... O-O 15. Rc1 Qb6?! { (-0.94 → -0.33) Inaccuracy. a5 was best. } (15... a5 16. a4) 16. b3? { (-0.33 → -1.75) Mistake. Na4 was best. } (16. Na4 Qb5 17. g4 Nh4 18. Nxh4 Bxh4 19. g5 Bb7 20. Nc5 d4+ 21. Nxb7 Qxb7+ 22. Kg1 Rac8) 16... a5?! { (-1.75 → -1.05) Inaccuracy. d4 was best. } (16... d4) 17. Na4 Qd8 18. g4 Nh6?! { (-0.69 → 0.08) Inaccuracy. Nh4 was best. } (18... Nh4 19. Nd4) 19. f5 Ba6 20. Bxh6?! { (0.28 → -0.40) Inaccuracy. Rg1 was best. } (20. Rg1 d4 21. f6 Ba3 22. fxg7 Kxg7 23. Bg5 Be7 24. Bf6+ Bxf6 25. exf6+ Kh8 26. Nc5 Qd5) 20... Bxf1 21. Be3?? { (-0.45 → -3.17) Blunder. f6 was best. } (21. f6 Bxf6) 21... Ba6 22. Qg1? { (-2.71 → -4.84) Mistake. Bb6 was best. } (22. Bb6 Qe8 23. Bc5 Rc8 24. Kg2 d4 25. Qxd4 exf5 26. gxf5 Bb7 27. Rc3 Bxf3+ 28. Kxf3 Bxc5) 22... exf5? { (-4.84 → -2.60) Mistake. d4 was best. } (22... d4 23. Bf4 Rc8 24. f6 gxf6 25. Rxc8 Qxc8 26. Qg3 Qc6 27. Bh6 Rc8 28. Kg1 Bb7 29. Qf4) 23. gxf5 f6?? { (-2.43 → 2.50) Blunder. d4 was best. } (23... d4 24. Bh6 g6 25. Qg4 Bb7 26. Bxf8 Bxf8 27. Kg2 d3 28. e6 fxe6 29. fxg6 Bg7 30. Kh3) 24. Bh6 Rf7 25. e6 Kf8?? { (3.03 → Mate in 7) Checkmate is now unavoidable. Qe8 was best. } (25... Qe8 26. Nb6) 26. exf7 Kxf7 27. Qxg7+ Ke8 28. Qxh7?! { (Mate in 5 → 11.75) Lost forced checkmate sequence. Qg8+ was best. } (28. Qg8+ Bf8 29. Bxf8 Qe7 30. Bh6+ Kd7 31. Nb6+ Kd6 32. Qxd5#) 28... Ra7?! { (11.75 → Mate in 6) Checkmate is now unavoidable. Qd6 was best. } (28... Qd6 29. Qg8+ Bf8 30. Bxf8 Qxf8 31. Qe6+ Qe7 32. Qc6+ Kf7 33. Qxd5+ Kg7 34. Qxa8 Kh7 35. Qxa6) 29. Qg6+ Kd7 30. Nd4? { (Mate in 5 → 8.84) Lost forced checkmate sequence. Ne5+ was best. } (30. Ne5+ Kd6 31. Rc6+ Kxe5 32. Re6+ Kd4 33. Qg1+ Kd3 34. Qd1#) 30... Rc7? { (8.84 → Mate in 2) Checkmate is now unavoidable. Bb5 was best. } (30... Bb5 31. Ne6 Bxa4 32. Nxd8 Rc7 33. Rd1 Bc6 34. Ne6 Kc8 35. Nxc7 Kxc7 36. Qg7 Kb6 37. Qxe7) 31. Rxc7+?? { (Mate in 2 → 5.98) Lost forced checkmate sequence. Nb6+ was best. } (31. Nb6+ Kd6 32. Bf4#) 31... Kxc7?! { (5.98 → 10.87) Inaccuracy. Qxc7 was best. } (31... Qxc7 32. Qg8 Qd6 33. Bf4 Qb4 34. Qxd5+ Ke8 35. Qa8+ Kf7 36. Qxa6 Qe1+ 37. Kg2 Qe4+ 38. Kg3) 32. Bf4+ Kc8 33. Qf7 Bb7?! { (11.71 → Mate in 3) Checkmate is now unavoidable. Be2 was best. } (33... Be2 34. Qe6+) 34. Qe6+ Qd7 35. Qd6?? { (Mate in 2 → 0.43) Lost forced checkmate sequence. Nb6+ was best. } (35. Nb6+ Kd8 36. Qxd7#) 35... Bxd6 36. Bxd6?? { (0.41 → -6.03) Blunder. Nb6+ was best. } (36. Nb6+ Kc7) 36... Qxd6 37. h4 Qf4 38. Ne6?? { (-5.69 → Mate in 3) Checkmate is now unavoidable. Nb6+ was best. } (38. Nb6+ Kb8 39. Nd7+ Ka8 40. Nxf6 Ba6 41. Ne6 Qf1+ 42. Kh2 Qf2+ 43. Kh3 Qxf5+ 44. Kg3 Qe5+) 38... d4+ 39. Kg1 Qg3+ 40. Kf1 d3 41. Nb6+ Kb8 42. Nd7+ Ka8 43. Nxf6 Qg2+ 44. Ke1 Qe2# { Black wins by checkmate. } 0-1