[Event "9月オープン大会 Arena"] [Site "https://lichess.org/IepzuCQ5"] [Date "2021.09.25"] [White "Gumenga"] [Black "sakuya304"] [Result "0-1"] [UTCDate "2021.09.25"] [UTCTime "13:36:01"] [WhiteElo "1500"] [BlackElo "2100"] [Variant "Standard"] [TimeControl "600+0"] [ECO "A04"] [Opening "Zukertort Opening: Kingside Fianchetto"] [Termination "Normal"] [Annotator "lichess.org"] 1. Nf3 g6 { A04 Zukertort Opening: Kingside Fianchetto } 2. c3 Bg7 3. g3?! { (0.61 → -0.16) Inaccuracy. e4 was best. } (3. e4 e5 4. d4 exd4 5. cxd4 d5 6. e5 Ne7 7. Nc3 O-O) 3... Nf6 4. Bg2 O-O 5. O-O d5 6. d4 c5 { Black offers draw } 7. dxc5 a5 8. a3 Na6? { (-0.19 → 1.06) Mistake. a4 was best. } (8... a4 9. c4) 9. Be3? { (1.06 → -0.05) Mistake. b4 was best. } (9. b4 Re8 10. Nbd2 e5 11. e4 Nc7 12. Bb2 Nxe4 13. Nxe4 dxe4 14. Nd2 f5 15. Nc4 Qe7) 9... Ng4 10. Bd4 e5 11. Be3?? { (-0.09 → -3.48) Blunder. h3 was best. } (11. h3 exd4 12. hxg4 dxc3 13. Nxc3 Bxg4 14. Qxd5 Bxc3 15. Qxd8 Rfxd8 16. bxc3 Nxc5 17. Nd4 Rac8) 11... Nxe3 12. fxe3 Nxc5 13. Nbd2 e4 14. Nd4 Bd7 15. N2b3? { (-3.23 → -5.98) Mistake. Qe1 was best. } (15. Qe1 Bh6) 15... Ba4 16. Qc2 Qb6 17. Rad1 Bxb3 18. Nxb3 Qxb3 19. Qxb3 Nxb3 20. Rxd5 Rfd8 21. Rb5?! { (-4.02 → -5.26) Inaccuracy. Bxe4 was best. } (21. Bxe4 a4) 21... a4 22. Bxe4 Nd2 23. Rf4 Bh6 24. Rh4 Bxe3+ 25. Kg2 Nxe4 26. Rxe4 Bc1 27. Rxb7 Rab8 28. Reb4 Rxb7 29. Rxb7 Rd2 30. b3 Bxa3 31. bxa4 Rxe2+ 32. Kf3 Rxh2 33. a5 Bc5 34. Rc7 Bg1 35. c4 Ra2 36. Rc8+ Kg7 37. Ra8 Ra4 { White resigns. } 0-1