lichess dev

[Event "Masterclass Arena"] [Site "http://chess-academy.net/nCdeSSmc"] [Date "2021.12.14"] [Round "-"] [White "olarudariamaria"] [Black "Mariaj"] [Result "1-0"] [UTCDate "2021.12.14"] [UTCTime "15:31:24"] [WhiteElo "1635"] [BlackElo "1520"] [WhiteRatingDiff "+15"] [BlackRatingDiff "-10"] [Variant "Standard"] [TimeControl "300+2"] [ECO "B07"] [Opening "Pirc Defense #4"] [Termination "Normal"] [Annotator "chess-academy.net"] 1. e4 d6?! { (0.12 → 0.73) Inaccuracy. Best move was e6. } { B07 Pirc Defense #4 } (1... e6 2. Nf3 d5 3. exd5 exd5 4. d4 Nf6 5. Bd3 Bd6 6. O-O) 2. Nc3?! { (0.73 → 0.23) Inaccuracy. Best move was d4. } (2. d4 Nf6 3. Nc3 e6 4. Nf3 Be7 5. Bd3 Nbd7 6. e5 dxe5) 2... c6?! { (0.23 → 0.97) Inaccuracy. Best move was c5. } (2... c5 3. Nf3 Nc6 4. d4 cxd4 5. Nxd4 e5 6. Nxc6 bxc6 7. Bc4) 3. Qe2? { (0.97 → -0.24) Mistake. Best move was d4. } (3. d4 Nd7 4. Nf3 e5 5. Bc4 Be7 6. O-O Ngf6 7. a4 O-O 8. h3 d5 9. exd5 Nb6) 3... e5?! { (-0.24 → 0.35) Inaccuracy. Best move was c5. } (3... c5 4. Nf3 Nc6 5. Qd1 Nf6 6. d4 cxd4 7. Nxd4 e5 8. Nf3 Be6 9. Bg5 Be7 10. Bd3) 4. Nf3?! { (0.35 → -0.36) Inaccuracy. Best move was f4. } (4. f4 exf4 5. d3 d5 6. exd5+ Be7 7. d6 Qxd6 8. Ne4 Qd5 9. Bd2 Be6 10. c4 Qd7) 4... f6? { (-0.36 → 1.72) Mistake. Best move was Nf6. } (4... Nf6) 5. b4? { (1.72 → -0.41) Mistake. Best move was d4. } (5. d4 Be6 6. Be3 Ne7 7. O-O-O Nd7 8. Kb1 a6 9. g3 Qc7 10. Bg2 h5 11. Qd3 Rd8) 5... d5 6. b5? { (0.36 → -1.42) Mistake. Best move was exd5. } (6. exd5 Bxb4) 6... dxe4? { (-1.42 → 0.94) Mistake. Best move was d4. } (6... d4) 7. Qxe4? { (0.94 → -0.24) Mistake. Best move was Nxe4. } (7. Nxe4 Be7) 7... g6? { (-0.24 → 1.60) Mistake. Best move was a6. } (7... a6 8. bxc6 Nxc6 9. Bc4 Nge7 10. Bb3 Na5 11. Ba4+ Bd7 12. Bxd7+ Qxd7 13. O-O Rc8 14. Re1) 8. bxc6? { (1.60 → 0.60) Mistake. Best move was Bc4. } (8. Bc4 a6 9. bxa6 Nxa6 10. O-O Nc5 11. Qe2 Bg4 12. d3 Ne6 13. Bxe6 Bxe6 14. d4 Qa5) 8... Nxc6 9. Nd5? { (1.31 → -1.02) Mistake. Best move was Bb5. } (9. Bb5 Ne7) 9... Nge7?? { (-1.02 → 7.73) Blunder. Best move was Bf5. } (9... Bf5) 10. Nxe7?? { (7.73 → -1.12) Blunder. Best move was Nxf6+. } (10. Nxf6+ Kf7 11. Nxe5+ Nxe5 12. Qxe5 Be6 13. Ne4 Qd5 14. Ng5+ Ke8 15. Bb2 Qxe5+ 16. Bxe5 Rg8) 10... Qxe7?! { (-1.12 → -0.13) Inaccuracy. Best move was Bxe7. } (10... Bxe7 11. Bb5 Bf5 12. Bxc6+ bxc6 13. Qa4 Qd7 14. d3 Kf7 15. O-O c5 16. Qxd7 Bxd7 17. Ba3) 11. h4? { (-0.13 → -1.90) Mistake. Best move was Bb5. } (11. Bb5 Qc5 12. Bxc6+ Qxc6 13. Qxc6+ bxc6 14. O-O c5 15. d3 Be7 16. Be3 Kf7 17. Nd2 Rb8) 11... Qd8? { (-1.90 → 0.12) Mistake. Best move was Bf5. } (11... Bf5) 12. h5? { (0.12 → -1.38) Mistake. Best move was Bb5. } (12. Bb5 Bf5) 12... gxh5? { (-1.38 → 0.56) Mistake. Best move was Bf5. } (12... Bf5) 13. Rxh5?! { (0.56 → -0.29) Inaccuracy. Best move was Rb1. } (13. Rb1) 13... h6? { (-0.29 → 2.31) Mistake. Best move was Be6. } (13... Be6 14. Bc4) 14. Qg6+? { (2.31 → 0.40) Mistake. Best move was Bb5. } (14. Bb5 Qd6) 14... Ke7? { (0.40 → 2.30) Mistake. Best move was Kd7. } (14... Kd7) 15. Nxe5?! { (2.30 → 1.66) Inaccuracy. Best move was Bc4. } (15. Bc4 Kd7) 15... Nxe5?! { (1.66 → 2.36) Inaccuracy. Best move was fxe5. } (15... fxe5) 16. Qe4?? { (2.36 → -0.84) Blunder. Best move was Rxe5+. } (16. Rxe5+ fxe5) 16... Qa5?? { (-0.84 → 2.52) Blunder. Best move was Kd7. } (16... Kd7) 17. Qe3?? { (2.52 → -3.17) Blunder. Best move was f4. } (17. f4 f5) 17... Kd7?? { (-3.17 → 0.19) Blunder. Best move was Bg4. } (17... Bg4 18. Rh4 Kd8 19. f3 Bd7 20. Bb2 Kc7 21. Qb3 Bc6 22. Bc3 Qa3 23. Bd4 Re8 24. Kf2) 18. Qd4+?? { (0.19 → -3.16) Blunder. Best move was f4. } (18. f4) 18... Kc6?? { (-3.16 → 1.72) Blunder. Best move was Kc7. } (18... Kc7 19. Bb2 Bd7 20. Rxe5 Qxe5+ 21. Qxe5+ fxe5 22. Bxe5+ Bd6 23. Bxh8 Rxh8 24. Bc4 Bc6 25. Kf1) 19. g3?? { (1.72 → -9.83) Blunder. Best move was Rb1. } (19. Rb1 Qc5) 19... Ng4?? { (-9.83 → 20.19) Blunder. Best move was Nf3+. } (19... Nf3+ 20. Kd1 Qxh5 21. Bg2 Bg4 22. d3 Qf5 23. Be3 Bd6 24. Qa4+ Kc7 25. Kc1 Qd7 26. Qc4+) 20. Bg2+ Kc7 21. Rxa5 b6 22. Qf4+ Ne5 23. Rb5 Bd7 24. Bxa8 Bxb5 25. d4 Rg8 26. dxe5 fxe5 27. Qxe5+ Kd7?! { (25.60 → Mate in 8) Checkmate is now unavoidable. Best move was Bd6. } (27... Bd6 28. Qxb5) 28. Qd5+?! { (Mate in 8 → 29.27) Lost forced checkmate sequence. Best move was Qxb5+. } (28. Qxb5+ Kd8 29. Qd5+ Ke7 30. Ba3+ Kf6 31. Bb2+ Kg6 32. Qxg8+ Kf5 33. Qxf8+ Kg4 34. Bf3+ Kh3) 28... Ke7?! { (29.27 → Mate in 7) Checkmate is now unavoidable. Best move was Bd6. } (28... Bd6 29. Qxg8) 29. Qxg8 Kd6 30. Qd5+?! { (Mate in 5 → Mate in 6) Not the best checkmate sequence. Best move was Qxf8+. } (30. Qxf8+ Ke6 31. Bf4 Be8 32. O-O-O Bf7 33. Be4 Kf6 34. Rd6#) 30... Ke7 31. Qxb5 Bg7 32. Ba3+ Kd8 33. Rd1+ Kc8 34. Qc6+ Kb8 35. Rd8# { White wins by checkmate. } 1-0