[Event "BẢNG ĐẤU HỌC SINH KHỐI 9"] [Site "https://lichess.org/V27RJUlm"] [Date "2022.11.12"] [White "hoangnguyenthuytien"] [Black "haipham28"] [Result "1-0"] [UTCDate "2022.11.12"] [UTCTime "05:07:35"] [WhiteElo "1421"] [BlackElo "1122"] [WhiteRatingDiff "+27"] [BlackRatingDiff "-21"] [Variant "Standard"] [TimeControl "600+2"] [ECO "C42"] [Opening "Petrov's Defense: Three Knights Game"] [Termination "Normal"] [Annotator "lichess.org"] 1. e4 e5 2. Nf3 Nf6 3. Nc3 { C42 Petrov's Defense: Three Knights Game } Be7? { (0.09 → 1.70) Mistake. Nc6 was best. } (3... Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Nxc6 bxc6 7. Bd3 d5 8. exd5) 4. Bc4? { (1.70 → 0.32) Mistake. Nxe5 was best. } (4. Nxe5 O-O 5. d4 Bb4 6. Bg5 h6 7. Bxf6 Qxf6 8. Qf3 Qxf3) 4... O-O 5. d3?! { (0.79 → 0.22) Inaccuracy. Nxe5 was best. } (5. Nxe5 d6 6. Nf3 Nxe4 7. Nxe4 d5 8. Bd3 dxe4 9. Bxe4 Nd7) 5... Bb4 6. Bd2 Bxc3 7. Bxc3 d6 8. O-O Nc6 9. d4?? { (0.42 → -1.68) Blunder. Re1 was best. } (9. Re1 Be6 10. Bb5 Bd7 11. Nd2 Re8 12. Nc4 Ne7 13. Bxd7 Qxd7 14. Ne3 Ng6 15. Qf3 Nh4) 9... exd4? { (-1.68 → -0.37) Mistake. Nxe4 was best. } (9... Nxe4 10. dxe5 Nxc3 11. bxc3 dxe5 12. Re1 Qxd1 13. Raxd1 Bg4 14. Bd5 Rfd8 15. Rd3 Bf5 16. Rd2) 10. Bxd4?! { (-0.37 → -1.45) Inaccuracy. Nxd4 was best. } (10. Nxd4 Nxe4) 10... Bg4 11. Be2 Re8 12. c3?! { (-1.51 → -2.55) Inaccuracy. Be3 was best. } (12. Be3 Rxe4 13. c3 Qe8 14. h3 Bh5 15. Re1 h6 16. Qb3 b6 17. a4 Re7 18. Qa2 Ne5) 12... Bxf3?? { (-2.55 → -0.75) Blunder. Nxd4 was best. } (12... Nxd4) 13. Bxf3 Nh5?? { (-0.64 → 8.19) Blunder. Nxe4 was best. } (13... Nxe4 14. Be3) 14. Bxh5 Rxe4 15. Re1 Rxe1+ 16. Qxe1 Qg5 17. Qe2 Kf8 18. Re1 g6 19. Bg4 a5 20. g3 b5 21. Bd7 Na7? { (7.83 → Mate in 2) Checkmate is now unavoidable. Nxd4 was best. } (21... Nxd4) 22. Bxa7? { (Mate in 2 → 7.95) Lost forced checkmate sequence. Qe8+ was best. } (22. Qe8+ Rxe8 23. Rxe8#) 22... Rxa7 23. Qe8+ Kg7 24. Bxb5 c6 25. Re7?? { (8.60 → -6.29) Blunder. Bxc6 was best. } (25. Bxc6 Qd2 26. Kg2 Qxe1 27. Qxe1 Rc7 28. Bb5 Rc5 29. c4 Rf5 30. Qxa5 d5 31. Bd7 Re5) 25... Kh6?? { (-6.29 → Mate in 7) Checkmate is now unavoidable. Rxe7 was best. } (25... Rxe7) 26. Qxf7?? { (Mate in 7 → -2.44) Lost forced checkmate sequence. Qf8+ was best. } (26. Qf8+ Kh5 27. Be2+ Qg4 28. Qxf7 Rxe7 29. Bxg4+ Kh6 30. Qxe7 a4 31. Qf8+ Kg5 32. Qf4#) 26... Rxe7?? { (-2.44 → 1.24) Blunder. Qxe7 was best. } (26... Qxe7) 27. Qf8+ Kh5?? { (1.11 → 6.46) Blunder. Rg7 was best. } (27... Rg7) 28. Bxc6 Re1+ 29. Kg2 Qc5? { (8.00 → Mate in 2) Checkmate is now unavoidable. d5 was best. } (29... d5 30. h3 Qe5 31. g4+ Kg5 32. f4+ Qxf4 33. h4+ Kxg4 34. Bd7+ Qf5 35. Bxf5+ gxf5 36. Qg7+) 30. Bf3+ Kg5 31. Qf4# { White wins by checkmate. } 1-0