[Event "2021 Spring Marathon"] [Site "https://lichess.org/MCsTsYzb"] [Date "2021.04.10"] [White "Lowenfisch"] [Black "Tyrantrum"] [Result "0-1"] [UTCDate "2021.04.10"] [UTCTime "12:50:52"] [WhiteElo "2124"] [BlackElo "1731"] [WhiteRatingDiff "-10"] [BlackRatingDiff "+21"] [Variant "Standard"] [TimeControl "300+0"] [ECO "A58"] [Opening "Benko Gambit Accepted: Fully Accepted Variation"] [Termination "Normal"] [Annotator "lichess.org"] 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 { A58 Benko Gambit Accepted: Fully Accepted Variation } Bxa6 6. Nc3 d6 7. Nf3 Nbd7 8. e4 Bxf1 9. Kxf1 g6 10. g3 Bg7 11. Kg2 O-O 12. Qe2 Qb6 13. Nb5?? { (1.48 → -0.47) Blunder. a4 was best. } (13. a4 Rfb8 14. Nb5 Ne8 15. Bg5 Nc7 16. Bxe7 Re8 17. Bg5 Rab8 18. Nd2 Nxb5 19. axb5 Qxb5) 13... Nxe4 14. Qxe4? { (0.22 → -0.98) Mistake. a4 was best. } (14. a4 Ndf6 15. Re1 Qb7 16. Qc2 Qxd5 17. Nc7 Qb7 18. Nxa8 Rxa8 19. a5 d5 20. Ng5 c4) 14... Qxb5 15. Qxe7 Ne5 16. Qxd6?? { (-1.30 → -5.26) Blunder. Nxe5 was best. } (16. Nxe5) 16... Nxf3 17. Kxf3 Rfd8?? { (-5.71 → -2.37) Blunder. Ra6 was best. } (17... Ra6 18. Qxf8+) 18. Qc6 Qd3+ 19. Kg2?? { (-2.30 → -5.86) Blunder. Be3 was best. } (19. Be3 Re8) 19... Qe4+ 20. Kg1 Qe1+ 21. Kg2 Qe4+ 22. f3 Qe2+ 23. Kh3 Qxf3 24. Re1 Rxd5?? { (-8.17 → Mate in 5) Checkmate is now unavoidable. Rab8 was best. } (24... Rab8 25. a4 Rxd5 26. Qxd5 Qxd5 27. Ra3 g5 28. g4 h5 29. b4 cxb4 30. Rae3 f5 31. gxf5) 25. Re8+?? { (Mate in 5 → Mate in 7) Lost forced checkmate sequence. Qxa8+ was best. } (25. Qxa8+ Rd8 26. Qxd8+ Bf8 27. Qxf8+ Kxf8 28. Bh6+ Kg8 29. Re8#) 25... Rxe8 26. Qxe8+ Bf8 27. Qxf8+ Kxf8 28. Bh6+ Kg8 29. Re1 Rh5# { Black wins by checkmate. } 0-1