lichess dev

[Event "Open Arena"] [Site "http://chess-academy.net/GHQeuA4k"] [Date "2021.01.27"] [Round "-"] [White "Denise"] [Black "Matei-550-125689"] [Result "1-0"] [UTCDate "2021.01.27"] [UTCTime "17:11:31"] [WhiteElo "1890"] [BlackElo "1564"] [WhiteRatingDiff "+21"] [BlackRatingDiff "-31"] [Variant "Standard"] [TimeControl "420+2"] [ECO "C42"] [Opening "Petrov's Defense #4"] [Termination "Normal"] [Annotator "chess-academy.net"] 1. e4 e5 2. Nf3 Nf6?! { (0.22 → 0.73) Inaccuracy. Best move was Nc6. } (2... Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Nd6 6. Bxc6 dxc6 7. dxe5) 3. Nxe5 d6 4. Nf3 { C42 Petrov's Defense #4 } Nc6? { (0.54 → 2.15) Mistake. Best move was Nxe4. } (4... Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O Nc6 8. c4 Nb4 9. cxd5) 5. Nc3?! { (2.15 → 1.23) Inaccuracy. Best move was d3. } (5. d3 h6 6. c4 g5 7. h3 Bg7 8. Nc3 Bd7 9. Be2 O-O 10. Be3 a6 11. d4 Re8) 5... Bd7? { (1.23 → 2.68) Mistake. Best move was d5. } (5... d5 6. exd5) 6. d4 Be7?! { (2.12 → 2.81) Inaccuracy. Best move was h6. } (6... h6 7. Be3) 7. d5? { (2.81 → 1.28) Mistake. Best move was h3. } (7. h3) 7... Nb4? { (1.28 → 2.64) Mistake. Best move was Ne5. } (7... Ne5) 8. a3 Na6 9. Bxa6 Rf8?? { (2.15 → 8.74) Blunder. Best move was bxa6. } (9... bxa6) 10. Bxb7 Rb8 11. Bc6 Rb4? { (8.64 → 15.43) Mistake. Best move was Bxc6. } (11... Bxc6) 12. Bxd7+ Kxd7 13. axb4 Qb8 14. e5 Nxd5 15. Nxd5 dxe5?! { (18.98 → Mate in 7) Checkmate is now unavoidable. Best move was a6. } (15... a6 16. Rxa6) 16. Nxe7+?! { (Mate in 7 → 17.43) Lost forced checkmate sequence. Best move was Nb6+. } (16. Nb6+ Kc6 17. Qd5+ Kxb6 18. b5 Bb4+ 19. Bd2 Bxd2+ 20. Nxd2 a5 21. Nc4+ Ka7 22. Rxa5#) 16... Ke6 17. Nc6 Kf5?! { (34.06 → Mate in 4) Checkmate is now unavoidable. Best move was Qe8. } (17... Qe8 18. Nfxe5) 18. Nxb8?! { (Mate in 4 → Mate in 6) Not the best checkmate sequence. Best move was Qd7+. } (18. Qd7+ Kf6 19. Bg5+ Kg6 20. Ne7+ Kh5 21. Qh3#) 18... Rxb8 19. Qd3+?! { (Mate in 5 → Mate in 6) Not the best checkmate sequence. Best move was Qd7+. } (19. Qd7+ Kf6 20. Ng5 Kg6 21. Qxf7+ Kh6 22. Nf3+ g5 23. Bxg5#) 19... Kf6 20. Bg5+ Ke6 21. Qa6+?! { (Mate in 3 → Mate in 5) Not the best checkmate sequence. Best move was O-O-O. } (21. O-O-O Rd8 22. Bxd8 f6 23. Qd7#) 21... Kd5 22. O-O-O+ Ke4 23. Rhe1+?! { (Mate in 1 → Mate in 3) Not the best checkmate sequence. Best move was Qd3#. } (23. Qd3#) 23... Kf5 24. Qxa7?! { (Mate in 3 → Mate in 6) Not the best checkmate sequence. Best move was Qd3+. } (24. Qd3+ Kg4 25. h3+ Kh5 26. Qxh7#) 24... Rxb4 25. Rxe5+ Kg4 26. h3+?! { (Mate in 3 → Mate in 4) Not the best checkmate sequence. Best move was Bf6. } (26. Bf6 gxf6 27. h3+ Kf4 28. Qe3#) 26... Kh5 27. Bd2+?! { (Mate in 4 → Mate in 4) Not the best checkmate sequence. Best move was Bf4+. } (27. Bf4+ f5 28. Rd6 Rxf4 29. Rxf5+ Rxf5 30. g4#) 27... Kg6 28. Bxb4?! { (Mate in 4 → Mate in 4) Not the best checkmate sequence. Best move was Rg5+. } (28. Rg5+ Kh6 29. Qc5 f6 30. Qe7 fxg5 31. Qxg5#) 28... Kf6 29. Qa6+ c6 30. Qxc6# { White wins by checkmate. } 1-0