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[Event "Ariadna Arena"] [Site "http://chess-academy.net/1kfbui4s"] [Date "2025.02.22"] [Round "-"] [White "Sliv"] [Black "Katherina"] [Result "1-0"] [UTCDate "2025.02.22"] [UTCTime "09:33:17"] [WhiteElo "1904"] [BlackElo "1500"] [WhiteRatingDiff "+19"] [BlackRatingDiff "-55"] [Variant "Standard"] [TimeControl "420+2"] [ECO "B04"] [Opening "Alekhine Defense: Modern Variation, Larsen-Haakert Variation"] [Termination "Normal"] [Annotator "chess-academy.net"] 1. e4 Nc6?! { (0.12 → 0.72) Inaccuracy. Best move was e6. } (1... e6 2. Nf3 d5 3. exd5 exd5 4. d4 Nf6 5. Bd3 Bd6 6. O-O) 2. Nf3?! { (0.72 → 0.21) Inaccuracy. Best move was d4. } (2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. c3 a6 6. Be3 Nge7) 2... Nf6? { (0.21 → 1.22) Mistake. Best move was e5. } (2... e5 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Nd6 6. Bxc6 dxc6 7. dxe5) 3. e5 Nd5 4. d4 d6?! { (0.63 → 1.17) Inaccuracy. Best move was e6. } { B04 Alekhine Defense: Modern Variation, Larsen-Haakert Variation } (4... e6) 5. c4?! { (1.17 → 0.48) Inaccuracy. Best move was Bb5. } (5. Bb5 a6) 5... Ndb4? { (0.48 → 2.94) Mistake. Best move was Nb6. } (5... Nb6 6. exd6 exd6 7. Be2 Be7 8. Nc3 O-O 9. O-O Bf6 10. h3 Bf5 11. Bd3 Bg6 12. Re1) 6. a3?! { (2.94 → 2.25) Inaccuracy. Best move was e6. } (6. e6 Bxe6 7. a3 a5 8. axb4 Nxb4 9. Bd3 g6 10. Nc3 Bg7 11. O-O O-O 12. Re1 Nxd3) 6... Na6 7. b4?! { (2.74 → 1.75) Inaccuracy. Best move was e6. } (7. e6 fxe6 8. b4 g6 9. b5 Nxd4 10. Qxd4 e5 11. Qb2 Nc5 12. Be3 Bg7 13. Bxc5 O-O) 7... Bg4? { (1.75 → 3.70) Mistake. Best move was dxe5. } (7... dxe5 8. d5) 8. b5 Nab8?! { (3.40 → 4.21) Inaccuracy. Best move was dxe5. } (8... dxe5 9. bxc6 b6 10. d5 e6 11. Nc3 Bd6 12. Be2 exd5 13. cxd5 Bxf3 14. Bxf3 Nc5 15. Qc2) 9. bxc6 bxc6? { (3.82 → 4.89) Mistake. Best move was Nxc6. } (9... Nxc6 10. e6) 10. Be2?! { (4.89 → 4.12) Inaccuracy. Best move was h3. } (10. h3 Bxf3 11. Qxf3 g6 12. Nc3 Bg7 13. Bf4 O-O 14. Rd1 dxe5 15. Bxe5 Bxe5 16. dxe5 Qc8) 10... Bxf3? { (4.12 → 5.72) Mistake. Best move was g6. } (10... g6) 11. Bxf3 dxe5?! { (5.33 → 5.95) Inaccuracy. Best move was g6. } (11... g6) 12. dxe5?! { (5.95 → 5.13) Inaccuracy. Best move was Qa4. } (12. Qa4 Qd6) 12... Qxd1+ 13. Kxd1 Na6?? { (4.91 → 12.55) Blunder. Best move was Nd7. } (13... Nd7 14. e6 Ne5 15. Be2 h5 16. Kc2 fxe6 17. Nd2 Nf7 18. Bb2 e5 19. Bf3 O-O-O 20. Nb3) 14. Bxc6+ Kd8 15. Bxa8 Kc8 16. Kc2 Kb8 17. Bc6 f6 18. Rd1 Kc8 19. e6 g5?! { (18.79 → Mate in 9) Checkmate is now unavoidable. Best move was Nb8. } (19... Nb8 20. Bd7+ Nxd7 21. exd7+ Kd8 22. Nc3 e6 23. Rb1 Bd6 24. Rb8+ Kxd7 25. Rxh8 Ke7 26. Rxh7) 20. Nc3 g4 21. Be3?! { (Mate in 5 → Mate in 7) Not the best checkmate sequence. Best move was Bd7+. } (21. Bd7+ Kb7 22. Rb1+ Nb4+ 23. Rxb4+ Ka6 24. Bc8+ Ka5 25. Rb5#) 21... Kb8 22. Nb5?! { (Mate in 1 → Mate in 5) Not the best checkmate sequence. Best move was Rd8#. } (22. Rd8#) 22... Bg7 23. Rab1 Bf8 24. Nxa7+?! { (Mate in 1 → Mate in 1) Not the best checkmate sequence. Best move was Rd8#. } (24. Rd8#) 24... Nb4+ 25. Rxb4# { White wins by checkmate. } 1-0