[Event "秋のロンドン祭り2020 simul"] [Site "https://lichess.org/EnO8A4Ug"] [Date "2020.10.10"] [White "hokuriku"] [Black "sakuya304"] [Result "0-1"] [UTCDate "2020.10.10"] [UTCTime "12:11:07"] [WhiteElo "1500"] [BlackElo "2041"] [Variant "Standard"] [TimeControl "600+60"] [ECO "A43"] [Opening "Benoni Defense: Benoni-Indian Defense"] [Termination "Normal"] [Annotator "lichess.org"] 1. d4 c5?! { (0.00 → 0.98) Inaccuracy. Nf6 was best. } (1... Nf6 2. c4 e6 3. Nf3 d5 4. cxd5 exd5 5. Bf4 c6 6. Nc3) 2. d5 Nf6 { A43 Benoni Defense: Benoni-Indian Defense } 3. Bf4?! { (0.77 → 0.03) Inaccuracy. Nc3 was best. } (3. Nc3 e6 4. e4 d6 5. Bc4 Be7 6. Nge2 O-O 7. O-O exd5) 3... b5 4. e3 Bb7 5. Bxb5? { (-0.18 → -1.29) Mistake. c4 was best. } (5. c4 g6 6. Nc3 b4 7. Na4 d6 8. Bd3 Nbd7 9. e4 Bg7) 5... Nxd5 6. Qg4?? { (-1.30 → -5.07) Blunder. Ne2 was best. } (6. Ne2 a6 7. Bd3 Nxf4 8. Nxf4 e5 9. Ne2 d5 10. c4 d4) 6... Qa5+ 7. Nc3 Nxc3 8. Bxb8 Nxb5+ 9. c3 Rxb8 10. Ne2 g6 11. O-O-O d6 12. Kb1 Qb6 13. Kc2 Ba6 14. h4 Nd4+ 15. exd4?! { (-12.00 → Mate in 1) Checkmate is now unavoidable. Kd2 was best. } (15. Kd2 Qxb2+ 16. Ke1 Bxe2 17. Rxd4 cxd4 18. Qxe2 Qxc3+ 19. Qd2 Rb1+ 20. Ke2 Qxd2+ 21. Kxd2 dxe3+) 15... Qxb2# { Black wins by checkmate. } 0-1