[Event "GrischukOP simul"] [Site "https://lichess.org/CCGZR5fp"] [Date "2021.04.18"] [White "GrischukOP"] [Black "oas003"] [Result "1-0"] [UTCDate "2021.04.18"] [UTCTime "00:08:42"] [WhiteElo "2121"] [BlackElo "1500"] [Variant "Standard"] [TimeControl "600+20"] [ECO "A04"] [Opening "Zukertort Opening: Black Mustang Defense"] [Termination "Normal"] [Annotator "lichess.org"] 1. Nf3 Nc6 { A04 Zukertort Opening: Black Mustang Defense } 2. g3 e5 3. d3 d5 4. Bg2 f5 5. O-O Nf6 6. Re1? { (0.29 → -0.93) Mistake. c4 was best. } (6. c4 dxc4 7. Qa4 Bd6 8. Qxc4 Qe7 9. Nc3 a6 10. e4 fxe4) 6... e4 7. dxe4 fxe4 8. Nd4 Nxd4?! { (-0.58 → 0.17) Inaccuracy. Bb4 was best. } (8... Bb4 9. c3) 9. Qxd4 c5 10. Qe5+ Be7 11. Nc3 d4?? { (0.85 → 4.00) Blunder. Kf7 was best. } (11... Kf7 12. Rd1) 12. Nxe4 Nxe4 13. Bxe4 O-O 14. Bd2?! { (4.36 → 3.01) Inaccuracy. Bf4 was best. } (14. Bf4 Qe8 15. e3 d3 16. cxd3 Kh8 17. Rac1 a5 18. d4 Ra6 19. Bd5 h6 20. dxc5 Raf6) 14... Bd6? { (3.01 → 4.82) Mistake. Re8 was best. } (14... Re8 15. Qd5+) 15. Qh5? { (4.82 → 2.75) Mistake. Qd5+ was best. } (15. Qd5+ Kh8 16. Qh5 g6 17. Bxg6 Qd7 18. e4 Qg7 19. Bf5 c4 20. Bh6 Qf7 21. Qh4 Re8) 15... g6 16. Qd5+ Rf7? { (2.96 → 4.75) Mistake. Kg7 was best. } (16... Kg7 17. c3) 17. e3? { (4.75 → 2.50) Mistake. Bf4 was best. } (17. Bf4) 17... Qf6 18. Rf1?! { (2.30 → 1.56) Inaccuracy. exd4 was best. } (18. exd4) 18... Be6?? { (1.56 → 6.83) Blunder. Bd7 was best. } (18... Bd7 19. Qb3 Be6 20. Bd5 Bxd5 21. Qxd5 Rd8 22. Qb3 Rc8 23. exd4 cxd4 24. Rae1 Qf3 25. Qxf3) 19. Qxd6 Rd8 20. Qxc5 Bh3 21. Bd5 Rf8 22. Qxd4 Qf5? { (8.59 → Mate in 3) Checkmate is now unavoidable. Qxd4 was best. } (22... Qxd4 23. exd4) 23. e4? { (Mate in 3 → 8.40) Lost forced checkmate sequence. Bc3 was best. } (23. Bc3 Qf6 24. Qxf6 Bxf1 25. Qg7#) 23... Qf3 24. e5 Qf5 25. Qe4 Qd7 26. e6 Rxf2?! { (13.63 → Mate in 6) Checkmate is now unavoidable. Bxe6 was best. } (26... Bxe6 27. Qxe6) 27. exd7+ Kg7 28. Rxf2 Bxd7 29. Rxf8 Kxf8 30. Bh6# { White wins by checkmate. } 1-0