[Event "ENAEL-Teh Coryphantha Convexa Arena"] [Site "https://lichess.org/eWHgFSfr"] [Date "2020.06.03"] [White "xtornasol512"] [Black "zenonrock"] [Result "0-1"] [UTCDate "2020.06.03"] [UTCTime "00:46:02"] [WhiteElo "1937"] [BlackElo "2052"] [WhiteRatingDiff "-4"] [BlackRatingDiff "+4"] [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. e3 O-O 5. c4 d6 6. Nc3 b6 7. Be2 Bb7 8. O-O Nbd7 9. Rc1 Re8 10. Bg3 e5 11. d5 Nh5 12. Bh4 Nhf6 13. e4 Nc5 14. Qc2 h6 15. b4 Ncd7 16. Bxf6?! { (1.10 → 0.53) Inaccuracy. Nd2 was best. } (16. Nd2 a5 17. a3 g5 18. Bg3 h5 19. h3 Nf8 20. c5 axb4 21. axb4 bxc5 22. bxc5 Ba6) 16... Nxf6 17. Rfe1?! { (1.07 → 0.11) Inaccuracy. c5 was best. } (17. c5 Bc8) 17... c6 18. dxc6 Bxc6 19. Red1 Rc8 20. b5 Bb7 21. Qb1 Qc7 22. Rd2 Kh7 23. Rcd1 Red8 24. h3 Rd7 25. a4 Rcd8 26. Qd3 Ng8?! { (0.00 → 0.72) Inaccuracy. Rc8 was best. } (26... Rc8 27. g3 Kg8 28. Bf1 Qc5 29. Rc2 Rdc7 30. h4 Bf8 31. Rdd2 Qb4 32. Rb2 Qc5) 27. Nxe5?? { (0.72 → -3.82) Blunder. Nd5 was best. } (27. Nd5 Qb8) 27... Bxe5 28. g3?! { (-3.72 → -5.02) Inaccuracy. Nd5 was best. } (28. Nd5 Qc5 29. Rc2 Nf6 30. Bg4 Nxg4 31. hxg4 Rc8 32. Qb3 Rdd8 33. g3 Bxd5 34. Rxd5 Qc7) 28... Bg7?! { (-5.02 → -3.58) Inaccuracy. Bxc3 was best. } (28... Bxc3) 29. f4? { (-3.58 → -5.74) Mistake. Nd5 was best. } (29. Nd5 Bxd5) 29... Ne7 30. e5? { (-4.64 → -8.51) Mistake. Bf3 was best. } (30. Bf3 Qc5+ 31. Kg2 Qb4 32. Rc1 Rc8 33. Ne2 Qxa4 34. Kh2 Rc5 35. Nd4 a6 36. Be2 axb5) 30... Qc5+ 31. Kh2? { (-8.00 → Mate in 1) Checkmate is now unavoidable. Qd4 was best. } (31. Qd4 Qa3 32. Ra2 Qb4 33. c5 bxc5 34. Qxb4 cxb4 35. Bg4 Nf5 36. Bxf5 gxf5 37. e6 fxe6) 31... dxe5?! { (Mate in 1 → -15.28) Lost forced checkmate sequence. Qf2# was best. } (31... Qf2#) 32. Qxd7?! { (-15.28 → Mate in 1) Checkmate is now unavoidable. Nd5 was best. } (32. Nd5 Qf2+ 33. Kh1 Nf5 34. Qxf5 gxf5 35. Bg4 Rxd5 36. cxd5 Qxg3 37. Bxf5+ Kg8 38. Bg4 Qxf4) 32... Rxd7?! { (Mate in 1 → -23.39) Lost forced checkmate sequence. Qf2# was best. } (32... Qf2#) 33. Rxd7?! { (-23.39 → Mate in 1) Checkmate is now unavoidable. Bf1 was best. } (33. Bf1 Rxd2+) 33... exf4 34. gxf4 Qf2# { Black wins by checkmate. } 0-1