lichess dev

[Event "Masterclass Arena"] [Site "http://chess-academy.net/v27xTxSv"] [Date "2022.02.18"] [Round "-"] [White "lemon"] [Black "raul"] [Result "1-0"] [UTCDate "2022.02.18"] [UTCTime "17:04:55"] [WhiteElo "1954"] [BlackElo "1322"] [WhiteRatingDiff "+2"] [BlackRatingDiff "-1"] [Variant "Standard"] [TimeControl "300+2"] [ECO "B07"] [Opening "Pirc Defense #5"] [Termination "Normal"] [Annotator "chess-academy.net"] 1. e4 d6?! { (0.12 → 0.73) Inaccuracy. Best move was e6. } (1... e6 2. Nf3 d5 3. exd5 exd5 4. d4 Nf6 5. Bd3 Bd6 6. O-O) 2. d4 { B07 Pirc Defense #5 } Qd7? { (0.47 → 1.58) Mistake. Best move was Nf6. } (2... Nf6 3. Nc3 e6 4. Nf3 Be7 5. Bd3 c5 6. dxc5 dxc5 7. O-O) 3. e5? { (1.58 → -1.38) Mistake. Best move was Nf3. } (3. Nf3) 3... b5?? { (-1.38 → 1.66) Blunder. Best move was dxe5. } (3... dxe5) 4. a4?! { (1.66 → 0.99) Inaccuracy. Best move was Nf3. } (4. Nf3) 4... bxa4? { (0.99 → 2.19) Mistake. Best move was b4. } (4... b4) 5. Bc4? { (2.19 → 1.18) Mistake. Best move was Nf3. } (5. Nf3 a6) 5... c6?! { (1.18 → 2.15) Inaccuracy. Best move was d5. } (5... d5 6. Be2 c5 7. Nf3 Nc6 8. Bb5 e6 9. O-O Qb7 10. c4 Bd7 11. Nc3 cxd4 12. Nxd4) 6. Qf3? { (2.15 → 0.43) Mistake. Best move was Nf3. } (6. Nf3) 6... c5?? { (0.43 → 12.56) Blunder. Best move was e6. } (6... e6 7. Qe2) 7. Qxf7+ Kd8 8. Bd2 cxd4?! { (10.14 → Mate in 5) Checkmate is now unavoidable. Best move was Nc6. } (8... Nc6 9. Qxf8+) 9. Ba5+ Qc7 10. Qxf8+ Kd7 11. Bb5+?! { (Mate in 3 → 19.97) Lost forced checkmate sequence. Best move was e6+. } (11. e6+ Kc6 12. Qf3+ Kc5 13. Qd5#) 11... Qc6 12. Bxc6+ Kxc6?! { (16.28 → Mate in 8) Checkmate is now unavoidable. Best move was Nxc6. } (12... Nxc6 13. Qxg7 Bb7 14. Qxh8 Nxa5 15. e6+ Kc7 16. Qg7 Nc6 17. Qxh7 Nf6 18. Qf5 Ne5 19. f3) 13. Qxg7?! { (Mate in 8 → 21.15) Lost forced checkmate sequence. Best move was Qxc8+. } (13. Qxc8+ Kd5 14. Nc3+ Kxe5 15. Nf3+ Kf6 16. Nd5+ Kg6 17. Nxe7+ Kf7 18. Ng5+ Kf6 19. Qf5+ Kxe7) 13... Kb5 14. Bc7 Bg4 15. Bxb8 Rxb8 16. Qxh8 Rf8 17. f3 Rf4 18. fxg4 d3 19. cxd3 dxe5?! { (30.04 → Mate in 20) Checkmate is now unavoidable. Best move was Rxg4. } (19... Rxg4 20. Nc3+) 20. Qxg8?! { (Mate in 20 → 36.29) Lost forced checkmate sequence. Best move was Na3+. } (20. Na3+) 20... h6?! { (36.29 → Mate in 6) Checkmate is now unavoidable. Best move was Rd4. } (20... Rd4 21. Nf3) 21. Qe6 h5 22. Qxe5+?! { (Mate in 5 → Mate in 7) Not the best checkmate sequence. Best move was Na3+. } (22. Na3+ Ka5 23. Rc1 Rf1+ 24. Kxf1 e4 25. Rc5+ Kb4 26. Qc4#) 22... Kc6 23. Qxf4 Kd5 24. Qg5+ Ke6 25. gxh5?! { (Mate in 5 → Mate in 6) Not the best checkmate sequence. Best move was Rxa4. } (25. Rxa4 Kd7 26. Rxa7+ Kc6 27. Nc3 hxg4 28. Qb5+ Kd6 29. Qd5#) 25... Kf7 26. h6?! { (Mate in 4 → Mate in 5) Not the best checkmate sequence. Best move was Qg6+. } (26. Qg6+ Kf8 27. Rxa4 e5 28. Rxa7 e4 29. Qf7#) 26... Kf8 27. Qg7+?! { (Mate in 4 → Mate in 5) Not the best checkmate sequence. Best move was h7. } (27. h7 Kf7 28. h8=Q Ke6 29. Qd8 a5 30. Qdxe7#) 27... Ke8 28. h7 Kd8 29. h8=Q+ Kd7 30. Qgg8?! { (Mate in 3 → Mate in 3) Not the best checkmate sequence. Best move was Qd4+. } (30. Qd4+ Kc6 31. Qc8+ Kb5 32. Qdc5#) 30... Kc6 31. Qf7?! { (Mate in 3 → Mate in 3) Not the best checkmate sequence. Best move was Qc4+. } (31. Qc4+ Kb7 32. Qhc8+ Kb6 33. Q8a6#) 31... Kc5 32. Qxe7+ Kb5 33. Qxa7?! { (Mate in 2 → Mate in 2) Not the best checkmate sequence. Best move was Qb8+. } (33. Qb8+ Kc6 34. Qbb7#) 33... Kb4 34. Qhb8# { White wins by checkmate. } 1-0