[Event "ch-USA 2017"] [Site "Saint Louis USA"] [Date "2017.04.07"] [Round "9.1"] [White "Xiong, Jeffery"] [Black "So, W."] [Result "0-1"] [WhiteElo "2674"] [BlackElo "2822"] [Variant "Standard"] [TimeControl "-"] [ECO "E05"] [Opening "Catalan Opening: Open Defense, Classical Line"] [Termination "Normal"] [Annotator "lichess.org"] 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 O-O 6. O-O dxc4 { E05 Catalan Opening: Open Defense, Classical Line } 7. Qc2 a6 8. a4 Bd7 9. Rd1 Bc6 10. Nc3 Bxf3 11. Bxf3 Nc6 12. Bxc6 bxc6 13. Bg5 Rb8 14. e3 c5 15. dxc5 Qe8 16. Rd4 Nd7 17. Bxe7 Qxe7 18. c6 Ne5 19. Qe4 Qc5 20. Nd5 Nd3 21. Nxc7 Nxf2 22. Kxf2?! { (-0.49 → -1.49) Inaccuracy. Nxa6 was best. } (22. Nxa6 Qg5 23. Kxf2 Rxb2+ 24. Ke1 Rxh2 25. Qf3 Rh1+ 26. Qxh1 Qxe3+ 27. Kf1 Qxd4 28. Rc1 Qd2) 22... Rxb2+ 23. Kf1 Qh5 24. Qg4 Qxh2 25. Qf3 c3 26. Rc1 e5 27. Rh4?? { (-0.75 → -4.76) Blunder. Rc4 was best. } (27. Rc4 Rfb8) 27... Qd2 28. Rd1 Rd8 29. Nd5? { (-4.32 → -10.25) Mistake. Rxd2 was best. } (29. Rxd2 Rdxd2 30. Kg1 Rb1+ 31. Qf1 Rdd1 32. Rc4 Rxf1+ 33. Kg2 c2 34. Rxc2 Rfc1 35. Rxc1 Rxc1) 29... Rxd5 30. Rd4 Rxd4 31. exd4 Qxd1+ { White resigns. } 0-1