[Event "Challenge"] [Site "http://www.chessatwork.com"] [Date "2015.01.11"] [Round "?"] [White "Grounded"] [Black "airy"] [Result "0-1"] [WhiteElo "1266"] [BlackElo "1848"] [Variant "Standard"] [TimeControl "-"] [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. Be2 O-O 6. O-O b6 7. c4 Bb7 8. Nc3 Nbd7 9. Re1 Re8 10. Ng5 h6 11. Nf3 e5 12. Bg3 Nh5 13. Bh4 g5 14. Nxg5?? { (-0.15 → -2.28) Blunder. Bg3 was best. } (14. Bg3 c5 15. Nb5 Nxg3 16. hxg3 e4 17. Nd2 cxd4 18. Nxd4 Bxd4 19. exd4 Nf6 20. d5 Qc7 21. Bg4 Qc5 22. Re3 Qd4) 14... hxg5 15. Bxg5?? { (-2.47 → -5.30) Blunder. Bxh5 was best. } (15. Bxh5 exd4 16. exd4 Rxe1+ 17. Qxe1 gxh4 18. Qe3 Qf6 19. Rd1 Qf5 20. Bf3 Bxf3 21. Qxf3 Qxf3 22. gxf3 c6 23. Ne4 d5 24. cxd5 cxd5) 15... Qxg5 16. Bxh5?? { (-5.22 → Mate in 1) Checkmate is now unavoidable. d5 was best. } (16. d5 Nhf6 17. e4 Bh6 18. g3 Qd2 19. Qb1 a5 20. h4 Bg7 21. Rd1 Qh6 22. b3 Nc5) 16... Qxg2# { Black wins by checkmate. } 0-1