lichess dev

[Event "Masterclass Arena"] [Site "http://chess-academy.net/3i4aRicM"] [Date "2022.03.15"] [Round "-"] [White "Teodor_Ababii"] [Black "Bogdan_Castravet"] [Result "0-1"] [UTCDate "2022.03.15"] [UTCTime "15:02:34"] [WhiteElo "1483"] [BlackElo "1592"] [WhiteRatingDiff "-11"] [BlackRatingDiff "+26"] [Variant "Standard"] [TimeControl "420+0"] [ECO "C20"] [Opening "King's Pawn Opening: 2.b3"] [Termination "Normal"] [Annotator "chess-academy.net"] 1. e4 e5 2. b3? { (0.30 → -0.96) Mistake. Best move was Nf3. } { C20 King's Pawn Opening: 2.b3 } (2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. Re1 Nc5) 2... Nf6 3. g3? { (-0.44 → -2.03) Mistake. Best move was Nc3. } (3. Nc3 Bb4 4. a3 Bxc3 5. dxc3 O-O 6. Bg5 h6 7. Bxf6 Qxf6 8. Bd3 d6 9. Ne2 Be6) 3... Nxe4?! { (-2.03 → -1.49) Inaccuracy. Best move was d5. } (3... d5) 4. Bg2 Ng5? { (-1.81 → -0.74) Mistake. Best move was d5. } (4... d5 5. Ne2) 5. Bb2?! { (-0.74 → -1.38) Inaccuracy. Best move was d4. } (5. d4) 5... e4? { (-1.38 → 0.53) Mistake. Best move was Nc6. } (5... Nc6 6. Nc3 Ne6 7. Nd5 g6 8. h4 Bg7 9. h5 O-O 10. Nf3 d6 11. Qe2 Ncd4 12. Nxd4) 6. Na3? { (0.53 → -1.47) Mistake. Best move was h4. } (6. h4 Ne6) 6... e3?? { (-1.47 → 1.85) Blunder. Best move was d5. } (6... d5) 7. fxe3?! { (1.85 → 0.87) Inaccuracy. Best move was f4. } (7. f4 Ne6) 7... Bd6? { (0.87 → 3.25) Mistake. Best move was d5. } (7... d5 8. Qh5) 8. Nh3? { (3.25 → 0.82) Mistake. Best move was Bxg7. } (8. Bxg7 Rg8) 8... Nxh3 9. Bxh3 O-O? { (0.93 → 2.12) Mistake. Best move was Bxa3. } (9... Bxa3 10. Bxa3) 10. Bg2? { (2.12 → 0.80) Mistake. Best move was Qg4. } (10. Qg4 f6) 10... Nc6?! { (0.80 → 1.62) Inaccuracy. Best move was Be7. } (10... Be7 11. O-O) 11. Nc4? { (1.62 → 0.59) Mistake. Best move was O-O. } (11. O-O Bxa3 12. Bxa3 d6 13. Rf4 Qg5 14. Qe2 Ne5 15. Raf1 Ng6 16. R4f2 Qa5 17. Bc1 Ne5) 11... b6? { (0.59 → 3.36) Mistake. Best move was Be7. } (11... Be7 12. Qh5 d5 13. Qxd5 Qxd5 14. Bxd5 Nb4 15. Be4 f5 16. Bd3 Nxd3+ 17. cxd3 b5 18. Na5) 12. Nxd6 cxd6 13. d3? { (3.24 → 1.08) Mistake. Best move was Qg4. } (13. Qg4 f6 14. O-O Bb7 15. Rf5 Na5 16. Bxb7 Nxb7 17. Raf1 Kh8 18. Rh5 Qe8 19. Qf5 g6) 13... Bb7?! { (1.08 → 1.83) Inaccuracy. Best move was Qg5. } (13... Qg5) 14. Rg1? { (1.83 → 0.30) Mistake. Best move was Qg4. } (14. Qg4) 14... Na5? { (0.30 → 1.63) Mistake. Best move was Qc7. } (14... Qc7) 15. Rb1? { (1.63 → -0.47) Mistake. Best move was Bxb7. } (15. Bxb7) 15... Bxg2?! { (-0.47 → 0.29) Inaccuracy. Best move was Qg5. } (15... Qg5 16. Bxb7) 16. Rxg2 Qe7?! { (0.00 → 0.64) Inaccuracy. Best move was Qg5. } (16... Qg5 17. Qf3 Rae8 18. Kd2 Nc6 19. Rf2 Qc5 20. Rbf1 d5 21. Bxg7 Kxg7 22. Qf6+ Kg8 23. Qg5+) 17. Re2?! { (0.64 → -0.17) Inaccuracy. Best move was Kd2. } (17. Kd2 Nc6) 17... Nc6?! { (-0.17 → 0.33) Inaccuracy. Best move was d5. } (17... d5) 18. e4?! { (0.33 → -0.46) Inaccuracy. Best move was Kf2. } (18. Kf2 d5 19. Kg2 Rfe8 20. Qd2 f6 21. c4 Qd6 22. Rbe1 a5 23. a4 Rac8 24. Rf2 d4) 18... Nd4?? { (-0.46 → 6.02) Blunder. Best move was Ne5. } (18... Ne5 19. Bxe5) 19. Re3?? { (6.02 → -0.48) Blunder. Best move was Bxd4. } (19. Bxd4 Qg5 20. Qd2 Qh5 21. Qf4 d5 22. g4 Qh4+ 23. Kd2 Rae8 24. Rbe1 dxe4 25. Rxe4 Re6) 19... Nb5? { (-0.48 → 1.38) Mistake. Best move was Qe5. } (19... Qe5 20. Kf1) 20. e5? { (1.38 → -1.02) Mistake. Best move was Kd2. } (20. Kd2 f6) 20... dxe5?! { (-1.02 → -0.10) Inaccuracy. Best move was f6. } (20... f6 21. Qf3 fxe5 22. Qd5+ Qf7 23. Qxf7+ Rxf7 24. Kd2 Rf2+ 25. Re2 Raf8 26. Re1 Nc7 27. Ba3) 21. Bxe5? { (-0.10 → -2.47) Mistake. Best move was Rxe5. } (21. Rxe5 Qb4+) 21... f6? { (-2.47 → -1.38) Mistake. Best move was d6. } (21... d6) 22. a4? { (-1.38 → -3.86) Mistake. Best move was Bd4. } (22. Bd4) 22... fxe5? { (-3.86 → -2.54) Mistake. Best move was Na3. } (22... Na3 23. Bd4) 23. g4?? { (-2.54 → -22.06) Blunder. Best move was axb5. } (23. axb5 Qb4+ 24. Ke2 Qg4+ 25. Ke1 Qd4 26. Ke2 d5 27. h3 Rf6 28. c3 Qc5 29. d4 Qxb5+) 23... Nc3 24. Qd2 Nxb1 25. Qc1?! { (-28.78 → Mate in 8) Checkmate is now unavoidable. Best move was h3. } (25. h3 Qh4+) 25... Nc3?! { (Mate in 8 → -16.43) Lost forced checkmate sequence. Best move was Qh4+. } (25... Qh4+ 26. Rg3 Qf6 27. Qxb1 Qf1+ 28. Kd2 Rf2+ 29. Kc3 Qxb1 30. Kc4 Qxc2+ 31. Kb5 a5 32. Kxb6) 26. Qb2?! { (-16.43 → Mate in 8) Checkmate is now unavoidable. Best move was Kd2. } (26. Kd2 Rf2+) 26... Qh4+ 27. Kd2 Qf2+ 28. Re2 Nxe2 29. Qc3 Nxc3+ 30. Kxc3 e4?! { (Mate in 4 → Mate in 4) Not the best checkmate sequence. Best move was Rac8+. } (30... Rac8+ 31. Kb2 Rxc2+ 32. Ka3 Ra2+ 33. Kb4 Qc5#) 31. dxe4 Rf3+ 32. Kb4 Qxc2?! { (Mate in 1 → Mate in 2) Not the best checkmate sequence. Best move was Qc5#. } (32... Qc5#) 33. Ka3 Qxb3# { Black wins by checkmate. } 0-1