[Event "rated blitz game"] [Site "https://lichess.org/RGykeKNi"] [Date "2025.08.27"] [White "pengzh"] [Black "Sertsoun"] [Result "0-1"] [GameId "RGykeKNi"] [UTCDate "2025.08.27"] [UTCTime "10:23:49"] [WhiteElo "2400"] [BlackElo "2395"] [WhiteRatingDiff "-6"] [BlackRatingDiff "+6"] [Variant "Standard"] [TimeControl "180+0"] [ECO "E21"] [Opening "Nimzo-Indian Defense: Three Knights Variation"] [Termination "Normal"] [Annotator "lichess.org"] 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nc3 { E21 Nimzo-Indian Defense: Three Knights Variation } Qe7 5. Bd2 Bxc3 6. Bxc3 Ne4 7. Qc2 f5 8. e3 b6 9. Bd3 Bb7 10. O-O O-O 11. Nd2 Nxc3 12. Qxc3 d6 13. e4 Qg5 14. d5 exd5 15. cxd5?! { (0.74 → 0.16) Inaccuracy. exd5 was best. } (15. exd5 c6 16. Nf3 Qf6 17. Qxf6 Rxf6 18. Nd4 cxd5 19. cxd5 Na6 20. Rfc1 Nb4) 15... Ba6?! { (0.16 → 0.99) Inaccuracy. Nd7 was best. } (15... Nd7) 16. Bxa6 Nxa6 17. Qc4?? { (1.07 → -1.00) Blunder. f4 was best. } (17. f4 Qe7) 17... Qxd2 18. Qxa6 Qxb2 19. exf5 Rxf5 20. Qb7?? { (-0.70 → -4.03) Blunder. Rab1 was best. } (20. Rab1 Qd4) 20... Raf8 21. Qxc7?? { (-3.74 → Mate in 5) Checkmate is now unavoidable. f3 was best. } (21. f3 Rg5 22. g4 Qd4+ 23. Kh1 Qxd5 24. Qxd5+ Rxd5 25. Kg2 Kf7 26. f4 Re8) 21... Rxf2 22. Kh1 Rxf1+ 23. Rxf1 Rxf1# { Black wins by checkmate. } 0-1