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[Event "2021 Spring Marathon"] [Site "https://lichess.org/mOwx5tcf"] [Date "2021.04.10"] [White "Sunjoq"] [Black "mnemonicdevice"] [Result "0-1"] [UTCDate "2021.04.10"] [UTCTime "01:11:35"] [WhiteElo "1803"] [BlackElo "1314"] [WhiteRatingDiff "-11"] [BlackRatingDiff "+12"] [Variant "Standard"] [TimeControl "300+0"] [ECO "B00"] [Opening "Nimzowitsch Defense: Declined Variation"] [Termination "Time forfeit"] [Annotator "lichess.org"] 1. e4 Nc6 2. Nf3 { B00 Nimzowitsch Defense: Declined Variation } b6?! { (0.13 → 0.91) Inaccuracy. e5 was best. } (2... e5 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6) 3. d4 Bb7?! { (1.41 → 2.09) Inaccuracy. e6 was best. } (3... e6 4. a3 Bb7 5. c4 d6 6. Nc3 Nf6 7. d5 Nb8 8. Bd3) 4. c4?! { (2.09 → 1.40) Inaccuracy. d5 was best. } (4. d5 Nb8 5. Nc3 e6 6. a3 Nf6 7. Bf4 g6 8. Qd2 Bg7) 4... e6 5. Nc3?! { (1.57 → 0.91) Inaccuracy. a3 was best. } (5. a3 d6 6. Nc3 Nf6 7. Bd3 Be7 8. O-O Nd7 9. b4 Bf6) 5... Bb4 6. Bf4 g5?? { (0.72 → 3.24) Blunder. Nf6 was best. } (6... Nf6) 7. Bxg5 f6 8. Bf4?! { (3.47 → 2.55) Inaccuracy. Bd2 was best. } (8. Bd2) 8... d6? { (2.55 → 4.36) Mistake. Qe7 was best. } (8... Qe7 9. Bg3) 9. Be2?! { (4.36 → 3.24) Inaccuracy. d5 was best. } (9. d5 Bxc3+) 9... Qe7?! { (3.24 → 4.28) Inaccuracy. e5 was best. } (9... e5 10. Be3) 10. a3?? { (4.28 → 1.92) Blunder. d5 was best. } (10. d5 Bxc3+ 11. bxc3 Na5 12. Nd4 e5 13. Bh5+ Kd8 14. Ne6+ Kc8 15. Bc1 Ba6 16. Be2 Kb8) 10... Bxc3+ 11. bxc3 O-O-O 12. Qb3?! { (1.68 → 0.99) Inaccuracy. O-O was best. } (12. O-O Na5) 12... h6?! { (0.99 → 1.74) Inaccuracy. e5 was best. } (12... e5 13. Be3) 13. Be3 f5 14. d5? { (1.55 → -0.05) Mistake. exf5 was best. } (14. exf5 exf5) 14... e5?? { (-0.05 → 5.33) Blunder. Na5 was best. } (14... Na5 15. Qa2 Nf6 16. Nd4 f4 17. Bxf4 e5 18. Nf5 Qh7 19. Be3 Nxe4 20. Ng3 Nxc3 21. Bg4+) 15. dxc6 Bxc6 16. exf5 Nf6 17. a4 Be4 18. a5 Bxf5 19. axb6 axb6 20. Qb5 Nd7? { (7.28 → Mate in 2) Checkmate is now unavoidable. Be4 was best. } (20... Be4) 21. Ra8+?! { (Mate in 2 → 11.00) Lost forced checkmate sequence. Qa6+ was best. } (21. Qa6+ Kb8 22. Qa8#) 21... Nb8 22. c5 dxc5 23. Qa6+ Kd7 24. Bb5+ Ke6 25. Qa2+ Kf6 26. O-O Be6 27. Qc2 Qg7 28. Nh4 h5 29. f4 Ke7 30. fxe5 Rhg8 31. Ra7 Rc8 32. Qf2 Rgf8?! { (10.95 → Mate in 4) Checkmate is now unavoidable. Nd7 was best. } (32... Nd7 33. Bf4) 33. Qe2?! { (Mate in 4 → 10.51) Lost forced checkmate sequence. Bxc5+ was best. } (33. Bxc5+ bxc5 34. Qxc5+ Kd8 35. Rxf8+ Qxf8 36. Qxf8#) 33... Rxf1+ 34. Qxf1 Rf8 35. Rxc7+ Kd8 36. Rxg7 Rxf1+ 37. Kxf1 Kc8 38. Ng6 Kd8?! { (17.98 → Mate in 12) Checkmate is now unavoidable. Nd7 was best. } (38... Nd7 39. Rh7) 39. Ne7?! { (Mate in 12 → 21.40) Lost forced checkmate sequence. Bg5+ was best. } (39. Bg5+ Kc8 40. Ne7+ Kb7 41. Nd5+ Nd7 42. Rxd7+ Bxd7 43. Bxd7 Ka6 44. e6 b5 45. e7 Ka5) 39... Kc7?! { (21.40 → Mate in 3) Checkmate is now unavoidable. Bd7 was best. } { Black wins on time. } (39... Bd7 40. Bc4) 0-1