[Event "Casual correspondence game"] [Site "https://lichess.org/bBcq1wNt"] [Date "2019.01.31"] [White "lukzen"] [Black "Happyotta"] [Result "1-0"] [UTCDate "2019.01.31"] [UTCTime "13:03:13"] [WhiteElo "1500"] [BlackElo "1500"] [Variant "Standard"] [TimeControl "-"] [ECO "A04"] [Opening "Zukertort Opening: Polish Defense"] [Termination "Normal"] [Annotator "lichess.org"] 1. Nf3 b5?! { (0.10 → 0.97) Inaccuracy. Nf6 was best. } { A04 Zukertort Opening: Polish Defense } (1... Nf6 2. c4 c5 3. Nc3 Nc6 4. e3 e6 5. d4 d5 6. a3) 2. Nc3?! { (0.97 → 0.19) Inaccuracy. e4 was best. } (2. e4 a6 3. d4 Bb7 4. Nbd2 e6 5. a4 d5 6. exd5 Qxd5) 2... Bb7? { (0.19 → 1.35) Mistake. b4 was best. } (2... b4 3. Na4 Nf6 4. d4 e6 5. e3 Bb7 6. c3 a5 7. Bd3) 3. d4?! { (1.35 → 0.39) Inaccuracy. Nxb5 was best. } (3. Nxb5) 3... g6?! { (0.39 → 1.41) Inaccuracy. b4 was best. } (3... b4 4. Na4 e6 5. e3 Nf6 6. Bd3 Be7 7. c3 O-O 8. O-O) 4. Bf4?! { (1.41 → 0.46) Inaccuracy. Nxb5 was best. } (4. Nxb5) 4... Bh6? { (0.46 → 1.78) Mistake. b4 was best. } (4... b4 5. Nb1) 5. Nd5?? { (1.78 → -3.69) Blunder. Bxh6 was best. } (5. Bxh6 Nxh6 6. Nxb5 O-O 7. e3 d6 8. h4 e6 9. h5 g5 10. Qd2 Nd7 11. Nc3 f5) 5... Bxd5 6. e3?! { (-3.47 → -4.48) Inaccuracy. Bxh6 was best. } (6. Bxh6 Nxh6 7. e3 a6 8. h4 d6 9. a4 b4 10. h5 c5 11. dxc5 dxc5 12. hxg6 hxg6) 6... c5? { (-4.48 → -2.63) Mistake. Bxf4 was best. } (6... Bxf4 7. exf4 Nc6 8. c3 Rb8 9. Bd3 Nf6 10. b4 O-O 11. a4 a6 12. O-O e6 13. Re1) 7. dxc5 Qa5+ 8. c3 Nf6?? { (-2.67 → 3.93) Blunder. Bxf3 was best. } (8... Bxf3 9. Qxf3 Nc6 10. Be5 Nf6 11. Bxf6 exf6 12. Qe4+ Kf8 13. a3 Kg7 14. Be2 Qa4 15. b4) 9. Bxh6 Bxf3 10. Qxf3 Nc6 11. Bg7 Ne5?? { (4.10 → 16.30) Blunder. Rg8 was best. } (11... Rg8) 12. Qxa8+ Qd8 13. Qxa7 Rg8 14. Bxf6 exf6 15. Bxb5 f5 16. O-O-O Qh4?! { (13.85 → Mate in 16) Checkmate is now unavoidable. Kf8 was best. } (16... Kf8 17. c6) 17. Rxd7 Kf8?! { (30.18 → Mate in 15) Checkmate is now unavoidable. Nxd7 was best. } (17... Nxd7 18. Qb8+) 18. Qb8+ Kg7 19. Qxe5+ Qf6 20. f4?! { (Mate in 34 → 16.43) Lost forced checkmate sequence. Rxf7+ was best. } (20. Rxf7+) 20... Ra8?! { (16.43 → Mate in 12) Checkmate is now unavoidable. Qxe5 was best. } (20... Qxe5 21. fxe5) 21. Rhd1?! { (Mate in 12 → 18.09) Lost forced checkmate sequence. Qxf6+ was best. } (21. Qxf6+ Kxf6 22. Bc4 Rf8 23. Rhd1 Kg7 24. Rxf7+ Rxf7 25. Bxf7 g5 26. c6 gxf4 27. exf4 Kh6) 21... Kh6?! { (18.09 → Mate in 4) Checkmate is now unavoidable. Qxe5 was best. } (21... Qxe5 22. fxe5) 22. Qxf6 Ra6 23. Qg5+ Kg7 24. Bc4 h6 25. Rxf7+ Kg8 26. Qxg6+ Kh8 27. Qg7# { White wins by checkmate. } 1-0