lichess dev

[Event "Masterclass Arena"] [Site "http://chess-academy.net/EiU6yvhP"] [Date "2022.03.04"] [Round "-"] [White "pasaniuc_iustin"] [Black "valeriab"] [Result "0-1"] [UTCDate "2022.03.04"] [UTCTime "17:50:44"] [WhiteElo "1275"] [BlackElo "1433"] [WhiteRatingDiff "-18"] [BlackRatingDiff "+27"] [Variant "Standard"] [TimeControl "300+2"] [ECO "B00"] [Opening "Nimzowitsch Defense: Scandinavian Variation, Bogoljubov Variation, Vehre Variation"] [Termination "Normal"] [Annotator "chess-academy.net"] 1. d4 d5 2. e4? { (0.53 → -0.55) Mistake. Best move was c4. } (2. c4 e6 3. Nf3 Nf6 4. Nc3 Bb4 5. e3 O-O 6. Be2 Nbd7) 2... Nc6? { (-0.55 → 0.99) Mistake. Best move was dxe4. } (2... dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 e6 6. Bd3 c5 7. dxc5) 3. Nc3? { (0.99 → -0.03) Mistake. Best move was e5. } (3. e5 Bf5) 3... Nf6? { (-0.03 → 1.08) Mistake. Best move was dxe4. } { B00 Nimzowitsch Defense: Scandinavian Variation, Bogoljubov Variation, Vehre Variation } (3... dxe4) 4. Nxd5? { (1.08 → -1.28) Mistake. Best move was e5. } (4. e5 Nd7) 4... e6?? { (-1.28 → 2.03) Blunder. Best move was Nxe4. } (4... Nxe4 5. Ne3 Qxd4 6. Qxd4 Nxd4 7. Ne2 Ne6 8. b3 b6 9. Bb2 Bb7 10. h4 O-O-O 11. f3) 5. Nxf6+ gxf6? { (1.45 → 2.50) Mistake. Best move was Qxf6. } (5... Qxf6 6. Nf3 e5 7. d5 Nb8 8. h3 Nd7 9. Bd3 Bd6 10. O-O O-O 11. a3 Nc5 12. b4) 6. e5?? { (2.50 → -1.18) Blunder. Best move was Nf3. } (6. Nf3) 6... Bb4+?? { (-1.18 → 1.98) Blunder. Best move was Qxd4. } (6... Qxd4) 7. c3 fxe5? { (1.90 → 4.30) Mistake. Best move was Bf8. } (7... Bf8 8. Qe2) 8. cxb4 exd4? { (3.74 → 4.89) Mistake. Best move was Qxd4. } (8... Qxd4) 9. Nf3?! { (4.89 → 4.07) Inaccuracy. Best move was b5. } (9. b5 Ne7) 9... Nxb4?! { (4.07 → 4.62) Inaccuracy. Best move was Qd5. } (9... Qd5 10. Bg5 e5 11. b5 Nb4 12. Qa4 Qd6 13. Bc4 h6 14. Bh4 Nd5 15. O-O Nb6 16. Qc2) 10. Bg5? { (4.62 → 3.58) Mistake. Best move was Bc4. } (10. Bc4) 10... f6? { (3.58 → 4.67) Mistake. Best move was Qd5. } (10... Qd5 11. Qa4+) 11. Bb5+? { (4.67 → 2.59) Mistake. Best move was Ne5. } (11. Ne5 O-O 12. Bh6 Kh8 13. a3 Nd5 14. Qf3 fxe5 15. Qxf8+ Qxf8 16. Bxf8 Bd7 17. Bh6 e4) 11... c6 12. Bxc6+?? { (2.97 → -1.70) Blunder. Best move was Bd2. } (12. Bd2 Qd6) 12... bxc6? { (-1.70 → -0.05) Mistake. Best move was Nxc6. } (12... Nxc6 13. Bh4) 13. Bxf6?? { (-0.05 → -4.10) Blunder. Best move was Ne5. } (13. Ne5 h5 14. a3 Qd5 15. Bxf6 Qe4+ 16. Qe2 Nc2+ 17. Kd1 Qxe2+ 18. Kxe2 O-O 19. Rac1 Ba6+) 13... Qxf6 14. O-O? { (-3.74 → -4.98) Mistake. Best move was a3. } (14. a3 Nd5 15. Qxd4 Qxd4 16. Nxd4 c5 17. Nc6 Bb7 18. Na5 Ba6 19. O-O-O O-O 20. Rhe1 Nf4) 14... Ba6 15. Re1 e5?? { (-4.46 → 6.20) Blunder. Best move was O-O. } (15... O-O 16. Re5) 16. Rxe5+ Kd7 17. Qxd4+ Kc7 18. Rc1?? { (6.08 → -0.69) Blunder. Best move was Qxb4. } (18. Qxb4 Rhe8 19. Qa5+ Kb7 20. Rf5 Qg6 21. Ng5 Bc4 22. Rc5 Ba6 23. Qb4+ Kc7 24. Qf4+ Kb7) 18... Rhd8?? { (-0.69 → 7.47) Blunder. Best move was Rhe8. } (18... Rhe8 19. a3 Nd3 20. Rxe8 Qxd4 21. Rxc6+ Kb7 22. Re7+ Kxc6 23. Nxd4+ Kd5 24. Nf5 Nxb2 25. Rxh7) 19. Rd1?? { (7.47 → -16.10) Blunder. Best move was Qxb4. } (19. Qxb4 Qd6 20. Re7+ Rd7 21. Qa5+ Kb7 22. Rxd7+ Qxd7 23. Qb4+ Bb5 24. Ne5 a5 25. Qxb5+ cxb5) 19... Rxd4 20. Rxd4 Nc2 21. Rd2 Qg6? { (-18.23 → -8.96) Mistake. Best move was Rg8. } (21... Rg8) 22. Rxc2? { (-8.96 → -14.31) Mistake. Best move was Re7+. } (22. Re7+ Kc8) 22... Qxc2 23. Re7+ Kd8 24. Ng5?! { (-13.32 → Mate in 2) Checkmate is now unavoidable. Best move was Re1. } (24. Re1 Qxb2) 24... Kxe7?! { (Mate in 2 → Mate in 9) Not the best checkmate sequence. Best move was Qd1+. } (24... Qd1+ 25. Re1 Qxe1#) 25. Ne4 Qd1# { Black wins by checkmate. } 0-1