[Event "Monthly Classical Arena"] [Site "https://lichess.org/gRw0YIU1"] [Date "2022.12.30"] [White "Ceshen"] [Black "Oganes2008"] [Result "0-1"] [UTCDate "2022.12.30"] [UTCTime "18:07:31"] [WhiteElo "2175"] [BlackElo "1663"] [WhiteRatingDiff "-58"] [BlackRatingDiff "+44"] [Variant "Standard"] [TimeControl "1200+10"] [ECO "A46"] [Opening "Indian Defense: London System"] [Termination "Normal"] [Annotator "lichess.org"] 1. d4 Nf6 2. Nf3 e6 3. Bf4 { A46 Indian Defense: London System } c5 4. e3 Nc6 5. c3 Be7 6. Nbd2 Nh5 7. Bg3 d5 8. Qc2 O-O 9. Bd3 h6 10. Ne5 Nxe5 11. Bxe5 f6 12. Bg3 Nxg3 13. hxg3 cxd4 14. exd4 e5 15. Bg6?! { (-0.22 → -1.09) Inaccuracy. Bf5 was best. } (15. Bf5 exd4 16. O-O dxc3 17. bxc3 Bxf5 18. Qxf5 Rc8 19. Nf3 Rxc3 20. Rad1 Rf7 21. Rxd5 Qc8) 15... e4 16. O-O-O f5 17. Kb1 Qd6 18. Bh5 f4 19. gxf4 Rxf4 20. Nf1?! { (-2.37 → -3.07) Inaccuracy. Nb3 was best. } (20. Nb3 g6) 20... g6 21. Ne3 gxh5 22. Rxh5 Bg5 23. Qb3 Rxf2 24. Nxd5 Be6 25. c4 Bxd5 26. cxd5 Re8 27. Qxb7 Rb8 28. Qxa7?! { (-19.24 → Mate in 8) Checkmate is now unavoidable. Qb3 was best. } (28. Qb3 Rxb3) 28... Rbxb2+ 29. Ka1 Rxa2+?? { (Mate in 7 → -6.60) Lost forced checkmate sequence. Qxd5 was best. } { White resigns. } (29... Qxd5 30. Rxg5+ hxg5 31. Rd2 Rbxd2 32. Qb8+ Rf8 33. Qxf8+ Kxf8 34. Kb1 Qxa2+ 35. Kc1 Qc2#) 0-1