[Event "2023 Summer Marathon"] [Site "https://lichess.org/D6H9JPYF"] [Date "2023.08.05"] [White "dillerboss"] [Black "behnam20"] [Result "0-1"] [UTCDate "2023.08.05"] [UTCTime "23:08:13"] [WhiteElo "2312"] [BlackElo "1817"] [WhiteRatingDiff "-11"] [BlackRatingDiff "+11"] [Variant "Standard"] [TimeControl "60+0"] [ECO "A08"] [Opening "Zukertort Opening: Reversed Grünfeld"] [Termination "Normal"] [Annotator "lichess.org"] 1. Nf3 d5 2. g3 c5 3. Bg2 Nc6 4. O-O?! { (0.50 → -0.24) Inaccuracy. d4 was best. } (4. d4 Nf6 5. O-O e6 6. c4 dxc4 7. dxc5 Qxd1 8. Rxd1 Bxc5) 4... e6?! { (-0.24 → 0.34) Inaccuracy. e5 was best. } (4... e5 5. d3 Be7 6. e4 d4 7. Na3 Bg4 8. Bd2 f6 9. c3) 5. d4 { A08 Zukertort Opening: Reversed Grünfeld } Bd6 6. dxc5 Bxc5 7. c4 Nf6 8. Nc3 d4 9. Na4 Qe7?! { (0.56 → 1.60) Inaccuracy. Be7 was best. } (9... Be7 10. e3) 10. Nxc5 Qxc5 11. a3?! { (1.55 → 0.52) Inaccuracy. b4 was best. } (11. b4 Qxc4) 11... a5 12. Qc2?! { (0.91 → 0.16) Inaccuracy. Qa4 was best. } (12. Qa4) 12... O-O 13. Rd1?! { (0.14 → -0.54) Inaccuracy. Bd2 was best. } (13. Bd2 a4) 13... e5 14. e3?! { (-0.62 → -1.75) Inaccuracy. Ne1 was best. } (14. Ne1) 14... Be6? { (-1.75 → -0.10) Mistake. d3 was best. } (14... d3 15. Qb3 e4 16. Nd2 Bg4 17. Nxe4 Nxe4 18. Bxe4 Bxd1 19. Qxd1 Qxc4 20. Qxd3 Qxd3 21. Bxd3) 15. exd4 exd4 16. b3 Rad8 17. Bb2 Rfe8 18. Rd2 d3 19. Qc3 Bg4? { (-0.42 → 1.07) Mistake. Bf5 was best. } (19... Bf5) 20. Ne1? { (1.07 → -0.38) Mistake. Rxd3 was best. } (20. Rxd3) 20... Nd4 21. Rxd3?? { (-0.01 → -7.32) Blunder. Nxd3 was best. } (21. Nxd3 Qc8 22. Nf4 Ne4 23. Bxe4 Rxe4 24. Nd5 Rxd5 25. cxd5 Nf3+ 26. Kh1 Qxc3 27. Bxc3 Nxd2) 21... Ne2+ 22. Kf1 Nxc3 23. Rxc3? { (-7.52 → Mate in 8) Checkmate is now unavoidable. Rxd8 was best. } (23. Rxd8 Be2+ 24. Kg1 Rxd8 25. b4 axb4 26. axb4 Qxb4 27. Ba3 Qb3 28. Bf3 Ng4 29. Bxe2 Nxe2+) 23... Rd2 24. Bc1 Qxf2# { Black wins by checkmate. } 0-1