[Event "Arion Improvers Arena"] [Site "https://lichess.org/S63hSvQj"] [Date "2020.05.10"] [White "nafsika"] [Black "PetrosKoutroupis"] [Result "1-0"] [UTCDate "2020.05.10"] [UTCTime "08:51:20"] [WhiteElo "1675"] [BlackElo "1470"] [WhiteRatingDiff "+20"] [BlackRatingDiff "-24"] [Variant "Standard"] [TimeControl "300+2"] [ECO "C47"] [Opening "Four Knights Game"] [Termination "Normal"] [Annotator "lichess.org"] 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 { C47 Four Knights Game } 4. Be2 Bc5?! { (-0.12 → 0.58) Inaccuracy. d5 was best. } (4... d5 5. exd5 Nxd5 6. Bb5 Nxc3 7. bxc3 Bd6 8. O-O O-O 9. d4) 5. d3?! { (0.58 → 0.00) Inaccuracy. Nxe5 was best. } (5. Nxe5 Nxe5 6. d4 Bd6 7. dxe5 Bxe5 8. Nb5 a6 9. f4 axb5) 5... O-O 6. Be3 Bxe3 7. fxe3 d6 8. Qd2 Bg4?! { (-0.23 → 0.43) Inaccuracy. Rb8 was best. } (8... Rb8 9. O-O) 9. O-O-O Qe7?! { (0.21 → 0.91) Inaccuracy. Bd7 was best. } (9... Bd7) 10. Nd5?! { (0.91 → -0.13) Inaccuracy. h3 was best. } (10. h3 Bxf3 11. Bxf3 Rfb8 12. g4 b5 13. h4 a5 14. g5 b4 15. Nd5 Nxd5 16. exd5 Nd8) 10... Nxd5 11. exd5 Nb8 12. d4?! { (0.23 → -0.42) Inaccuracy. h3 was best. } (12. h3) 12... exd4 13. exd4 Nd7 14. Rhe1 Qf6 15. Bb5? { (-0.04 → -1.25) Mistake. Rf1 was best. } (15. Rf1 Rae8 16. Bd3 Qd8 17. h3 Bh5 18. c4 b5 19. c5 dxc5 20. Bxb5 c4 21. Bxc4 Bxf3) 15... Nb6 16. Be2?! { (-0.72 → -1.30) Inaccuracy. Rf1 was best. } (16. Rf1 Nxd5) 16... Nxd5 17. Bc4 Nb6 18. Be2 Rfe8 19. h3 Bxf3 20. Bxf3 Rxe1 21. Rxe1 Nc4?! { (-1.24 → -0.38) Inaccuracy. c6 was best. } (21... c6 22. b3 g6 23. a4 a5 24. Qe3 Kg7 25. g4 h6 26. Bg2 Nd7 27. Kb1 d5 28. Rf1) 22. Qd3? { (-0.38 → -1.89) Mistake. Qc3 was best. } (22. Qc3) 22... b5?? { (-1.89 → 7.97) Blunder. Qf4+ was best. } (22... Qf4+) 23. Bxa8 Qh4? { (7.79 → Mate in 1) Checkmate is now unavoidable. g6 was best. } (23... g6 24. b3) 24. Re8# { White wins by checkmate. } 1-0