[Event "Worldwide U12 East A Team Battle"] [Site "https://lichess.org/x5UdcVM4"] [Date "2021.03.24"] [White "Sergelen123"] [Black "OscarYang2011"] [Result "1-0"] [UTCDate "2021.03.24"] [UTCTime "11:20:32"] [WhiteElo "2027"] [BlackElo "1570"] [WhiteRatingDiff "+5"] [BlackRatingDiff "-1"] [Variant "Standard"] [TimeControl "600+2"] [ECO "D00"] [Opening "Queen's Pawn Game: Accelerated London System, Steinitz Countergambit"] [Termination "Normal"] [Annotator "lichess.org"] 1. d4 d5 2. Bf4 c5 { D00 Queen's Pawn Game: Accelerated London System, Steinitz Countergambit } 3. e3 Nf6 4. c3 Nc6 5. Nd2 Bf5 6. Ngf3 e6 7. Bb5 Qb6 8. Qa4 Be7 9. Ne5? { (0.62 → -0.54) Mistake. dxc5 was best. } (9. dxc5 Bxc5 10. b4 Be7 11. Nd4 O-O 12. Bxc6 bxc6 13. Nxc6 Bd8 14. Bd6 Re8 15. Bc5 Qc7) 9... Rc8?! { (-0.54 → 0.25) Inaccuracy. O-O was best. } (9... O-O 10. dxc5) 10. Bxc6+ bxc6 11. Qb3?! { (-0.07 → -1.00) Inaccuracy. O-O was best. } (11. O-O) 11... Qd8?! { (-1.00 → -0.22) Inaccuracy. cxd4 was best. } (11... cxd4 12. exd4) 12. O-O O-O 13. h3?! { (0.00 → -0.71) Inaccuracy. Qb7 was best. } (13. Qb7 Qe8 14. Qxa7 Ra8 15. Qc7 Rc8) 13... Qa5?? { (-0.71 → 1.21) Blunder. Nd7 was best. } (13... Nd7 14. Nxd7 Qxd7 15. Qa4 Qb7 16. dxc5 Bxc5 17. b4 Be7 18. Nb3 f6 19. Nd4 Bd3 20. Rfd1) 14. g4?! { (1.21 → 0.49) Inaccuracy. Qb7 was best. } (14. Qb7) 14... Bg6?! { (0.49 → 1.58) Inaccuracy. Ne4 was best. } (14... Ne4) 15. Qb7 cxd4?? { (1.57 → 3.74) Blunder. Rc7 was best. } (15... Rc7 16. Nb3 Rxb7 17. Nxa5 Rxb2 18. Naxc6 Re8 19. Nxe7+ Rxe7 20. dxc5 Ne8 21. c4 dxc4 22. Rfc1) 16. Qxe7 dxc3 17. Nb3 Qb5 18. bxc3 Ra8? { (3.28 → 5.45) Mistake. c5 was best. } (18... c5 19. Qxa7) 19. Nd4 Qb2 20. Ndxc6 Qxc3 21. Rac1 Qb2 22. h4 Be4 23. f3 Bg6 24. h5 Bc2 25. h6 Ne8 26. hxg7 Nxg7 27. Qf6 Rfc8 28. Ne7+ Kf8 29. Nxc8 Rxc8 30. Qxf7# { White wins by checkmate. } 1-0