[Event "212th BCA Kids U16 2021"] [Site "https://lichess.org/SS3eDoom"] [Date "2021.11.16"] [White "bca_cyrus1603"] [Black "BCA_AngelNPo12f"] [Result "0-1"] [UTCDate "2021.11.16"] [UTCTime "09:31:00"] [WhiteElo "1801"] [BlackElo "2169"] [WhiteRatingDiff "-2"] [BlackRatingDiff "+1"] [Variant "Standard"] [TimeControl "420+2"] [ECO "A48"] [Opening "London System"] [Termination "Normal"] [Annotator "lichess.org"] 1. d4 Nf6 2. Nf3 g6 3. Bf4 { A48 London System } Bg7 4. e3 d6 5. Bd3 O-O 6. O-O c5 7. c3 Nc6 8. Nbd2 cxd4 9. cxd4 e5 10. dxe5?? { (-0.50 → -4.95) Blunder. Bg5 was best. } (10. Bg5 exd4) 10... dxe5 11. Nxe5 Nxe5 12. Bxe5 Qxd3 13. Rc1 Be6 14. Nf3 Qxd1 15. Rfxd1 Bg4 16. Rc7 b6 17. Rdc1 Rac8 18. Nd4 Nd5 19. Rxc8 Rxc8 20. Rxc8+ Bxc8 21. Bxg7 Kxg7 22. Nc6 a5 23. Nd4 Be6 24. Kf1 Nb4 25. a3 Nd3 26. Nxe6+ fxe6 27. b3 Nc5 28. b4 axb4 29. axb4 Na6 30. b5 Nc7 31. Ke2 Nxb5 32. Kd3 Nd6 33. Kd4 Kf6 34. f4 Ke7 35. g4 h5 36. g5 b5 37. h4 Nf5+ 38. Kc5 Nxe3 39. Kxb5 Ng2 40. Kc4 Nxh4 41. Kd4 Ng2 42. Ke5 h4 43. f5?! { (-73.14 → Mate in 11) Checkmate is now unavoidable. Ke4 was best. } (43. Ke4 Ne1) 43... exf5 44. Kd4 h3 45. Kd3 h2 46. Ke2 Ne3 47. Kxe3 h1=Q 48. Kf4 Qe4+ 49. Kg3 Qg4+ 50. Kf2 Qh3 51. Kg1 Ke6 52. Kf2 Ke5 53. Ke1 Qg2 54. Kd1 Kd4 55. Kc1 Kc3 56. Kd1 Qd2# { Black wins by checkmate. } 0-1