[Event "Elite Chess Challengers 11"] [Site "https://lichess.org/ilVrPg6i"] [Date "2021.09.02"] [White "wacknikka"] [Black "ZERSKI"] [Result "1-0"] [UTCDate "2021.09.02"] [UTCTime "14:25:02"] [WhiteElo "1961"] [BlackElo "1523"] [WhiteRatingDiff "+4"] [BlackRatingDiff "-9"] [Variant "Standard"] [TimeControl "600+5"] [ECO "B07"] [Opening "Czech Defense"] [Termination "Normal"] [Annotator "lichess.org"] 1. e4 d6 2. d4 Nf6 3. Nc3 c6 { B07 Czech Defense } 4. Be2?! { (1.00 → 0.30) Inaccuracy. f4 was best. } (4. f4 Qa5 5. Bd3 e5 6. Nf3 exd4 7. Nxd4 Qb6 8. Nb3 a5) 4... Qa5 5. Nf3? { (0.56 → -0.59) Mistake. Bd2 was best. } (5. Bd2 Nbd7 6. Nf3 e5 7. a4 Be7 8. O-O Qc7 9. a5 O-O) 5... Nxe4 6. O-O Nxc3 7. bxc3 Qxc3 8. Rb1 Bf5?! { (-0.80 → 0.17) Inaccuracy. Qa5 was best. } (8... Qa5 9. Re1 e6 10. c4 Be7 11. Bd3 Nd7 12. Bf4 Qd8 13. Qc2 h6 14. c5 dxc5 15. dxc5) 9. Bd3?! { (0.17 → -0.59) Inaccuracy. Bd2 was best. } (9. Bd2 Qxc2) 9... Bg4?? { (-0.59 → 3.79) Blunder. Bxd3 was best. } (9... Bxd3 10. cxd3) 10. Rb3? { (3.79 → 1.71) Mistake. h3 was best. } (10. h3 Bc8) 10... Qa1?? { (1.71 → 5.95) Blunder. Qa5 was best. } (10... Qa5 11. Rxb7) 11. h3 Bxf3 12. Qxf3 Qxd4 13. Rxb7 g6 14. Be3 Qa4 15. Re1 Qxa2? { (5.39 → 12.14) Mistake. Nd7 was best. } (15... Nd7 16. Bd4) 16. Bd4 f6 17. Bxf6 Rg8?! { (15.24 → Mate in 7) Checkmate is now unavoidable. Kd8 was best. } (17... Kd8 18. Bxh8) 18. Bxe7?! { (Mate in 7 → 15.62) Lost forced checkmate sequence. Rbxe7+ was best. } (18. Rbxe7+ Bxe7 19. Rxe7+ Kd8 20. Rg7+ Kc8 21. Qg4+ Qe6 22. Qxe6+ Nd7 23. Qxd7+ Kb8 24. Rxg8#) 18... Bxe7?! { (15.62 → Mate in 4) Checkmate is now unavoidable. Qa1 was best. } (18... Qa1 19. Rxa1) 19. Qg4 Rg7 20. Bc4?! { (Mate in 6 → 13.38) Lost forced checkmate sequence. Qc8+ was best. } (20. Qc8+ Kf7 21. Rbxe7+ Kf6 22. Qd8 Rf7 23. Re8+ Kg7 24. Rg8+ Kh6 25. Qh4#) 20... Qxc2?! { (13.38 → Mate in 1) Checkmate is now unavoidable. Qxc4 was best. } (20... Qxc4 21. Qc8+ Kf7 22. Rexe7+ Kf6 23. Qf8+ Kg5 24. Rxg7 Nd7 25. Qxd6 Qf4 26. h4+ Qxh4 27. Rgxd7) 21. Qc8# { White wins by checkmate. } 1-0