[Event "2021 Spring Marathon"] [Site "https://lichess.org/7Ij5SbLW"] [Date "2021.04.10"] [White "Liennard"] [Black "guessworkceo"] [Result "0-1"] [UTCDate "2021.04.10"] [UTCTime "23:54:14"] [WhiteElo "1554"] [BlackElo "2112"] [WhiteRatingDiff "+0"] [BlackRatingDiff "+1"] [Variant "Standard"] [TimeControl "300+0"] [ECO "A00"] [Opening "Van't Kruijs Opening"] [Termination "Normal"] [Annotator "lichess.org"] 1. e3 { A00 Van't Kruijs Opening } c6 2. d4 d5 3. Be2 Nf6 4. c4 Bf5 5. cxd5?! { (0.09 → -0.48) Inaccuracy. Nf3 was best. } (5. Nf3 e6 6. O-O Be7 7. Nc3 h6 8. Bd3 Bxd3 9. Qxd3 O-O) 5... cxd5 6. Bd3 a6?? { (-0.19 → 5.31) Blunder. Bxd3 was best. } (6... Bxd3 7. Qxd3) 7. Bxf5 e6 8. Bd3 Be7 9. Be2 Nbd7 10. Bd2 b5 11. Nc3 Nb6 12. b3 Rc8 13. Rc1 Ba3 14. Nb1? { (5.41 → 2.94) Mistake. Rc2 was best. } (14. Rc2 O-O) 14... Bxc1 15. Bxc1 Qc7 16. Bb2 Ne4 17. Bd3 Nf6 18. Ne2 { White offers draw } 18... Nbd7 19. O-O Ng4 20. Nf4 g5? { (4.40 → 7.69) Mistake. Ngf6 was best. } (20... Ngf6 21. Ba3) 21. Nh3?? { (7.69 → Mate in 1) Checkmate is now unavoidable. Qxg4 was best. } (21. Qxg4 gxf4 22. exf4 Qd6 23. f5 h5 24. Qf3 Ke7 25. Nd2 Rcg8 26. Kh1 Rg7 27. Qe2 Rhg8) 21... Qxh2# { Black wins by checkmate. } 0-1