lichess dev

[Event "Open Arena"] [Site "http://chess-academy.net/7HGX9ZhA"] [Date "2021.01.20"] [Round "-"] [White "Doina"] [Black "Alexandru16"] [Result "1-0"] [UTCDate "2021.01.20"] [UTCTime "17:20:58"] [WhiteElo "1206"] [BlackElo "943"] [WhiteRatingDiff "+7"] [BlackRatingDiff "-16"] [Variant "Standard"] [TimeControl "420+2"] [ECO "B00"] [Opening "Owen Defense"] [Termination "Normal"] [Annotator "chess-academy.net"] 1. e4 b6?! { (0.12 → 0.84) Inaccuracy. Best move was e6. } { B00 Owen Defense } (1... e6 2. Nf3 d5 3. exd5 exd5 4. d4 Nf6 5. Bd3 Bd6 6. O-O) 2. Bc4?! { (0.84 → -0.03) Inaccuracy. Best move was d4. } (2. d4 Bb7 3. Bd3 Nf6 4. Nc3 e6 5. Nge2 d5 6. exd5 Nxd5) 2... c5? { (-0.03 → 1.02) Mistake. Best move was e6. } (2... e6 3. d4 Bb7 4. Bd3 Nf6 5. Nd2 c5 6. c3 d6 7. Ne2) 3. Qh5? { (1.02 → -0.62) Mistake. Best move was Nf3. } (3. Nf3 Bb7) 3... Qc7?? { (-0.62 → Mate in 2) Checkmate is now unavoidable. Best move was e6. } (3... e6 4. d3 a6 5. Qe2 Nc6 6. Nf3 Nge7 7. c3 Ng6 8. h4 h5 9. d4 b5 10. Bb3) 4. Qxf7+ Kd8 5. d4?? { (Mate in 1 → 3.10) Lost forced checkmate sequence. Best move was Qxf8#. } (5. Qxf8#) 5... d6?? { (3.10 → 16.29) Blunder. Best move was Nh6. } (5... Nh6 6. Bxh6 gxh6 7. Nf3 Nc6 8. Nc3 Qd6 9. dxc5 Qg6 10. Qf4 bxc5 11. O-O-O Bg7 12. Bd5) 6. Qxf8+ Kd7 7. Bxg8 Rxg8 8. Qxg8 Nc6 9. d5 Nd4 10. Bd2 Nxc2+ 11. Kd1 Nxa1 12. Nf3 Nb3 13. Bc3? { (11.36 → 8.35) Mistake. Best move was axb3. } (13. axb3) 13... Qb7? { (8.35 → 11.26) Mistake. Best move was Nd4. } (13... Nd4 14. Bxd4) 14. e5 Qa6 15. exd6?! { (11.58 → 9.38) Inaccuracy. Best move was axb3. } (15. axb3 Qd3+) 15... Qd3+?! { (9.38 → 15.56) Inaccuracy. Best move was Qe2+. } (15... Qe2+) 16. Nfd2? { (15.56 → 8.75) Mistake. Best move was Nbd2. } (16. Nbd2) 16... Qxb1+? { (8.75 → 28.98) Mistake. Best move was Qg6. } (16... Qg6 17. dxe7 Bb7 18. Qe6+ Qxe6 19. dxe6+ Kxe7 20. axb3 g5 21. Rg1 g4 22. b4 Rf8 23. Ke1) 17. Nxb1 Ba6?! { (26.78 → Mate in 3) Checkmate is now unavoidable. Best move was Nd4. } (17... Nd4 18. Bxd4) 18. Qxa8?! { (Mate in 3 → Mate in 7) Not the best checkmate sequence. Best move was Qe6+. } (18. Qe6+ Kd8 19. Qxe7+ Kc8 20. Qc7#) 18... Be2+ 19. Kxe2 Nc1+ 20. Kd1 Nxa2 21. Be5?! { (Mate in 3 → Mate in 5) Not the best checkmate sequence. Best move was Qc6+. } (21. Qc6+ Kd8 22. Qc7+ Ke8 23. Qxe7#) 21... Nc3+ 22. Nxc3?! { (Mate in 4 → Mate in 4) Not the best checkmate sequence. Best move was Bxc3. } (22. Bxc3 exd6 23. Re1 g5 24. Qb7+ Kd8 25. Bf6#) 22... exd6 23. Bxg7 a5 24. Re1 a4 25. Nxa4?! { (Mate in 2 → Mate in 2) Not the best checkmate sequence. Best move was Qc6+. } (25. Qc6+ Kd8 26. Bf6#) 25... c4 26. Bf6 c3 27. Nxb6+?! { (Mate in 1 → Mate in 1) Not the best checkmate sequence. Best move was Re7#. } (27. Re7#) 27... Kc7 28. Qc8+?! { (Mate in 1 → Mate in 3) Not the best checkmate sequence. Best move was Qa7#. } (28. Qa7#) 28... Kxb6 29. Qd7?! { (Mate in 3 → Mate in 4) Not the best checkmate sequence. Best move was Qc6+. } (29. Qc6+ Ka7 30. Re7+ Kb8 31. Qb7#) 29... Kc5 30. Qc6+?! { (Mate in 3 → Mate in 3) Not the best checkmate sequence. Best move was Bxc3. } (30. Bxc3 Kb6 31. Re7 h5 32. Qc6#) 30... Kb4 31. Re4+ Kb3 32. Qb6+?! { (Mate in 2 → Mate in 2) Not the best checkmate sequence. Best move was Qa4+. } (32. Qa4+ Kxb2 33. Rb4#) 32... Ka2 33. Bxc3?! { (Mate in 2 → Mate in 3) Not the best checkmate sequence. Best move was Ra4+. } (33. Ra4+ Kb1 34. bxc3#) 33... Kb1 34. Kd2 Ka1 35. Re1+?! { (Mate in 2 → Mate in 2) Not the best checkmate sequence. Best move was Qa5+. } (35. Qa5+ Kb1 36. Re1#) 35... Ka2 36. Qa6+?! { (Mate in 2 → Mate in 2) Not the best checkmate sequence. Best move was b3. } (36. b3 h6 37. Ra1#) 36... Kb3 37. Qb6+?! { (Mate in 2 → Mate in 2) Not the best checkmate sequence. Best move was Qb5+. } (37. Qb5+ Ka2 38. Qa4#) 37... Kc4 38. Re4+?! { (Mate in 2 → Mate in 2) Not the best checkmate sequence. Best move was b3+. } (38. b3+ Kxd5 39. Qb5#) 38... Kxd5 39. Rd4+?! { (Mate in 2 → Mate in 3) Not the best checkmate sequence. Best move was Qb7+. } (39. Qb7+ Kc5 40. b4#) 39... Ke5 40. Qxd6+ Kf5 41. Qd5+?! { (Mate in 2 → Mate in 3) Not the best checkmate sequence. Best move was Rd5+. } (41. Rd5+ Ke4 42. f3#) 41... Kf6 42. Qc5?! { (Mate in 3 → Mate in 3) Not the best checkmate sequence. Best move was Rg4+. } (42. Rg4+ Ke7 43. Rg7+ Ke8 44. Qa8#) 42... Kg6 43. Rd6+ Kf7 44. Qc7+ Ke8 45. Rd8# { White wins by checkmate. } 1-0