lichess dev

[Event "Masterclass Arena"] [Site "http://chess-academy.net/ql2g0BzL"] [Date "2022.02.04"] [Round "-"] [White "alexandru_apostu"] [Black "raul"] [Result "1-0"] [UTCDate "2022.02.04"] [UTCTime "17:17:41"] [WhiteElo "1624"] [BlackElo "1343"] [WhiteRatingDiff "+8"] [BlackRatingDiff "-5"] [Variant "Standard"] [TimeControl "300+2"] [ECO "B01"] [Opening "Scandinavian Defense"] [Termination "Normal"] [Annotator "chess-academy.net"] 1. e4 d5?! { (0.12 → 0.81) Inaccuracy. Best move was e6. } { B01 Scandinavian Defense } (1... e6 2. Nf3 d5 3. exd5 exd5 4. d4 Nf6 5. Bd3 Bd6 6. O-O) 2. d3? { (0.81 → -0.68) Mistake. Best move was exd5. } (2. exd5 Nf6 3. Nf3 Nxd5 4. d4 c5 5. c4 Nf6 6. d5 e6) 2... e6?! { (-0.68 → -0.08) Inaccuracy. Best move was dxe4. } (2... dxe4) 3. Nc3?! { (-0.08 → -0.71) Inaccuracy. Best move was Nd2. } (3. Nd2 c5 4. g3 Nc6 5. Bg2 Nf6 6. Ne2 Be7 7. exd5 exd5) 3... dxe4?! { (-0.71 → 0.22) Inaccuracy. Best move was c5. } (3... c5 4. g3 d4 5. Nce2 e5 6. Bg2 Nc6 7. f4 Bd6 8. Nf3 Nf6 9. c3 O-O 10. O-O) 4. dxe4 Qxd1+ 5. Nxd1 Bd7?! { (-0.17 → 0.47) Inaccuracy. Best move was Nd7. } (5... Nd7 6. Nc3 a6 7. Be3 b5 8. a3 Ngf6 9. f3 Be7 10. Nh3 O-O 11. O-O-O c5 12. Rg1) 6. Nf3?! { (0.47 → -0.25) Inaccuracy. Best move was Nc3. } (6. Nc3 Nc6 7. Be3 Bb4 8. Ne2 O-O-O 9. a3 Bd6 10. O-O-O Nf6 11. f3 b6 12. Nf4 Kb7) 6... Ba4? { (-0.25 → 0.80) Mistake. Best move was Nf6. } (6... Nf6 7. Nc3) 7. b3?! { (0.80 → 0.11) Inaccuracy. Best move was Nc3. } (7. Nc3 Bb4) 7... Bb5?? { (0.11 → 5.61) Blunder. Best move was Bc6. } (7... Bc6 8. Nd2) 8. Bxb5+ Kd8? { (4.83 → 7.14) Mistake. Best move was c6. } (8... c6 9. Bd3 Nd7 10. Nd2 Ngf6 11. Bb2 Nc5 12. f3 Nxd3+ 13. cxd3 Rd8 14. Ke2 Nh5 15. g3) 9. Ne5 f6?? { (6.54 → 10.64) Blunder. Best move was a6. } (9... a6 10. Nxf7+ Ke7 11. Nxh8 axb5 12. Nc3 b4 13. Nb5 c6 14. Nd4 e5 15. Bg5+ Nf6 16. Nf5+) 10. Nf7+ Ke7 11. Nxh8 g6 12. Ba3+ Kd8 13. Bxf8 f5 14. Nf7+ Kc8 15. Ne3 c6 16. Bc4 b5 17. Bxe6+ Kc7 18. O-O Kb6 19. Rad1 Ka5 20. c4 Kb6 21. cxb5 Kxb5?! { (24.10 → Mate in 7) Checkmate is now unavoidable. Best move was Nf6. } (21... Nf6 22. Nc4+) 22. a4+ Ka5 23. Nc4+ Ka6 24. Nd8?! { (Mate in 1 → Mate in 6) Not the best checkmate sequence. Best move was Bc8#. } (24. Bc8#) 24... Nd7 25. Nxc6 Nc5 26. Rd6?! { (Mate in 4 → Mate in 7) Not the best checkmate sequence. Best move was Bxc5. } (26. Bxc5 Kb7 27. N4a5+ Kc7 28. Rd7+ Kc8 29. Rxa7#) 26... Nxe4 27. Nb8+?! { (Mate in 2 → Mate in 4) Not the best checkmate sequence. Best move was Rd7. } (27. Rd7 Ne7 28. Nb4#) 27... Kb7 28. Rd8?! { (Mate in 4 → 22.49) Lost forced checkmate sequence. Best move was Rd7+. } (28. Rd7+ Kxb8 29. Bd6+ Nxd6 30. Nxd6 g5 31. Rb7#) 28... Nxf2?! { (22.49 → Mate in 4) Checkmate is now unavoidable. Best move was a5. } (28... a5) 29. Rxf2?! { (Mate in 4 → Mate in 5) Not the best checkmate sequence. Best move was Rd7+. } (29. Rd7+ Kxb8 30. Bd6+ Kc8 31. Rg7+ Kd8 32. Rxg8#) 29... Nf6 30. Bd5+?! { (Mate in 4 → Mate in 8) Not the best checkmate sequence. Best move was Bd6. } (30. Bd6 Rxb8 31. Rxb8+ Kc6 32. b4 g5 33. b5#) 30... Nxd5 31. Rxd5?! { (Mate in 5 → Mate in 7) Not the best checkmate sequence. Best move was Na5+. } (31. Na5+ Kb6 32. Rd6+ Kc7 33. Rc2+ Nc3 34. Na6+ Kc8 35. Rxc3#) 31... Rxb8 32. Bd6?! { (Mate in 7 → 72.01) Lost forced checkmate sequence. Best move was Na5+. } (32. Na5+ Ka8 33. Rd7 Rc8 34. Rc2 Re8 35. Nc6 Re1+ 36. Kf2 Rf1+ 37. Kxf1 f4 38. Rxa7#) 32... Rd8?! { (72.01 → Mate in 7) Checkmate is now unavoidable. Best move was Kc6. } (32... Kc6 33. Rc5+) 33. Na5+ Kb6 34. Rb5+ Ka6 35. Bc7?! { (Mate in 2 → Mate in 4) Not the best checkmate sequence. Best move was Nc6. } (35. Nc6 Rxd6 36. Nb4#) 35... Rd5 36. Rxd5 f4 37. b4?! { (Mate in 1 → Mate in 1) Not the best checkmate sequence. Best move was Rd6#. } (37. Rd6#) 37... g5 38. b5# { White wins by checkmate. } 1-0