[Event "NM winthlin simul"] [Site "https://lichess.org/ZjSfVufd"] [Date "2023.06.27"] [White "williamcofer"] [Black "winthlin"] [Result "0-1"] [UTCDate "2023.06.27"] [UTCTime "23:03:43"] [WhiteElo "1524"] [BlackElo "2534"] [BlackTitle "NM"] [Variant "Standard"] [TimeControl "900+10"] [ECO "A45"] [Opening "Indian Defense"] [Termination "Normal"] [Annotator "lichess.org"] 1. d4 Nf6 { A45 Indian Defense } 2. c3 d5 3. Bg5 Bf5 4. Nf3 Nbd7 5. c4 e6 6. Nc3 Be7 7. e3 O-O 8. Bd3 Bxd3 9. Qxd3 c5 10. cxd5 Nxd5 11. Bxe7 Nxe7 12. O-O-O Qa5 13. a3 Rac8 14. dxc5?? { (-0.53 → -3.49) Blunder. Qb5 was best. } (14. Qb5 Qc7 15. dxc5 Nxc5 16. Kb1 a6 17. Qb4 b6 18. Rd2 Rfd8 19. Rxd8+ Rxd8 20. Rd1 Rxd1+) 14... Nxc5 15. Qc2 Na4 16. b4? { (-4.19 → -7.36) Mistake. Ng5 was best. } (16. Ng5 Qxg5 17. Qxa4 Nd5 18. Qc2 Nxc3 19. bxc3 Qxg2 20. Rhg1 Qh3 21. Rh1 Qf3 22. Rhg1 g6) 16... Qa6 17. Rd3 Nd5 18. Qxa4?! { (-7.17 → -13.93) Inaccuracy. b5 was best. } (18. b5 Qa5 19. Nxd5 Rxc2+ 20. Kxc2 Qxb5 21. Rc1 Rc8+ 22. Rc3 Rd8 23. Rd3 Kf8 24. Rb1 Qc4+) 18... Rxc3+ 19. Rxc3 Qxa4 20. Rd3? { (-9.67 → Mate in 6) Checkmate is now unavoidable. Rc5 was best. } (20. Rc5 Qxa3+ 21. Kd1 Nxb4 22. Nd4 e5 23. Ke2 exd4 24. Rd1 dxe3 25. fxe3 Re8 26. Rcc1 Qxe3+) 20... Rc8+ 21. Kd2 Qc2+ 22. Ke1 Qxd3 23. Nd2 Rc1# { Black wins by checkmate. } 0-1