lichess dev

[Event "Tartakower Arena"] [Site "http://chess-academy.net/W5yRHC74"] [Date "2021.02.01"] [Round "-"] [White "vepex_fan"] [Black "CornelCoslet"] [Result "1-0"] [UTCDate "2021.02.01"] [UTCTime "18:07:49"] [WhiteElo "2038"] [BlackElo "1549"] [WhiteRatingDiff "+9"] [BlackRatingDiff "-2"] [Variant "Standard"] [TimeControl "420+2"] [ECO "C40"] [Opening "Elephant Gambit"] [Termination "Normal"] [Annotator "chess-academy.net"] 1. e4 e5 2. Nf3 d5?! { (0.22 → 0.98) Inaccuracy. Best move was Nc6. } { C40 Elephant Gambit } (2... Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Nd6 6. Bxc6 dxc6 7. dxe5) 3. exd5 Qxd5?! { (0.64 → 1.36) Inaccuracy. Best move was Nf6. } (3... Nf6) 4. Nc3 Qc6?? { (0.93 → 8.87) Blunder. Best move was Qc5. } (4... Qc5) 5. Bb5 Qxb5? { (8.61 → 10.82) Mistake. Best move was Bd7. } (5... Bd7 6. Bxc6) 6. Nxb5 c6 7. Nc7+ Kd7 8. Nxa8 Na6 9. Nxe5+ Kd6 10. d4 Nh6 11. Bf4 Be7 12. Nxf7+ Kd5 13. c4+ Kxc4?! { (28.94 → Mate in 3) Checkmate is now unavoidable. Best move was Ke6. } (13... Ke6 14. Nxh8) 14. Rc1+?! { (Mate in 3 → Mate in 6) Not the best checkmate sequence. Best move was Qb3+. } (14. Qb3+ Kxd4 15. Be5+ Kc5 16. Rc1#) 14... Kb4 15. Qb3+?! { (Mate in 2 → Mate in 6) Not the best checkmate sequence. Best move was Bd2+. } (15. Bd2+ Kb5 16. a4#) 15... Ka5 16. Bd2+ Nb4 17. Rc5+?! { (Mate in 5 → Mate in 5) Not the best checkmate sequence. Best move was Qa3+. } (17. Qa3+ Kb5 18. Qxa7 Nc2+ 19. Rxc2 c5 20. Qb6+ Ka4 21. Qa5#) 17... Bxc5 18. dxc5 Kb5 19. Qxb4+ Ka6 20. Qa5# { White wins by checkmate. } 1-0