[Event "Ugochukwu02 Arena"] [Site "https://lichess.org/CrkfZpuc"] [Date "2020.09.28"] [White "ugochukwu_NNUE"] [Black "Ugochukwu02"] [Result "0-1"] [UTCDate "2020.09.28"] [UTCTime "20:17:21"] [WhiteElo "1676"] [BlackElo "2248"] [WhiteRatingDiff "+0"] [BlackRatingDiff "+2"] [Variant "Standard"] [TimeControl "180+0"] [ECO "A48"] [Opening "London System"] [Termination "Normal"] [Annotator "lichess.org"] 1. d4 Nf6 2. Nf3 g6 3. Bf4 { A48 London System } Bg7 4. Nbd2 d6?! { (-0.44 → 0.20) Inaccuracy. c5 was best. } (4... c5 5. e3 d6 6. c3 Nh5 7. Bg5 h6 8. Bh4 cxd4 9. cxd4) 5. e3 Nh5 6. Bg3?! { (-0.20 → -0.83) Inaccuracy. Bg5 was best. } (6. Bg5 h6 7. Bh4 c5 8. c3 cxd4 9. cxd4 Be6 10. Bc4 Bxc4) 6... Nxg3 7. hxg3 Nc6?! { (-0.73 → 0.03) Inaccuracy. O-O was best. } (7... O-O 8. c3 Nd7 9. Be2 Nf6 10. O-O c5 11. a3 Bd7 12. b4) 8. Bc4?! { (0.03 → -0.55) Inaccuracy. Ne4 was best. } (8. Ne4 O-O) 8... d5?! { (-0.55 → 0.05) Inaccuracy. O-O was best. } (8... O-O 9. c3) 9. Bb3 Bg4 10. c3?! { (0.09 → -0.66) Inaccuracy. c4 was best. } (10. c4 dxc4 11. Bxc4 O-O 12. Be2 Rb8 13. Rc1 e5 14. Nxe5 Bxe2 15. Kxe2 Nxe5 16. dxe5 Qd5) 10... e5 11. dxe5 Nxe5 12. Qc2?? { (-0.60 → -2.41) Blunder. O-O was best. } (12. O-O O-O 13. Qc2 Nxf3+ 14. gxf3 Be6 15. e4 c6 16. Kg2 Qd7 17. Rh1 Rfd8 18. f4 Bg4) 12... Bf5 13. Ba4+ c6 14. e4?! { (-2.43 → -3.58) Inaccuracy. Qb3 was best. } (14. Qb3) 14... dxe4 15. Nd4? { (-3.63 → -7.46) Mistake. Nh4 was best. } (15. Nh4 e3 16. Nxf5 Qxd2+ 17. Qxd2 exd2+ 18. Kxd2 gxf5 19. Bb3 O-O-O+ 20. Ke2 Nd3 21. Rab1 Rd7) 15... Nd3+ 16. Kf1 Bxd4 17. cxd4 Qxd4 18. Rd1? { (-7.04 → Mate in 1) Checkmate is now unavoidable. Nb1 was best. } (18. Nb1) 18... Qxf2# { Black wins by checkmate. } 0-1