[Event "Moscow 1811 Arena"] [Site "https://lichess.org/tqmIy2tt"] [Date "2020.06.12"] [White "Andrey_Obraztsov"] [Black "Usenko_Sergey"] [Result "0-1"] [UTCDate "2020.06.12"] [UTCTime "14:06:30"] [WhiteElo "1596"] [BlackElo "1520"] [WhiteRatingDiff "-10"] [BlackRatingDiff "+55"] [Variant "Standard"] [TimeControl "420+2"] [ECO "A40"] [Opening "Mikenas Defense"] [Termination "Normal"] [Annotator "lichess.org"] 1. d4 Nc6 { A40 Mikenas Defense } 2. Nf3 d6 3. Nc3 Nf6 4. e4 e5 5. d5 Ne7 6. Bg5 Ng6 7. Bd3?! { (0.77 → 0.12) Inaccuracy. h4 was best. } (7. h4 h5 8. g3 Be7 9. Be2 Ng4 10. Bd2 c6 11. a4 Bd7) 7... Be7 8. O-O Nxd5? { (-0.17 → 1.30) Mistake. O-O was best. } (8... O-O 9. Re1) 9. Nxd5 Bxg5 10. Nxg5 Qxg5?? { (1.16 → 3.40) Blunder. c6 was best. } (10... c6) 11. Nxc7+ Kd7?? { (3.03 → 7.21) Blunder. Ke7 was best. } (11... Ke7) 12. Nxa8 b6 13. Bb5+ Ke7 14. Nc7 Nh4 15. Nd5+ Kd8 16. Ne3 Bh3? { (8.59 → Mate in 2) Checkmate is now unavoidable. Ke7 was best. } (16... Ke7 17. g3) 17. Kh1?? { (Mate in 2 → Mate in 3) Lost forced checkmate sequence. Qxd6+ was best. } (17. Qxd6+ Bd7 18. Qxd7#) 17... Bxg2+ 18. Kg1 Bf3+ 19. Ng4 Bxd1?! { (Mate in 1 → -10.74) Lost forced checkmate sequence. Qxg4# was best. } (19... Qxg4#) 20. Rfxd1 Qxg4+ 21. Kf1 Nf3 22. Ke2 Nd4+ 23. Ke3?! { (-14.18 → Mate in 6) Checkmate is now unavoidable. Kf1 was best. } (23. Kf1) 23... Qf3+ 24. Kd2 Nxb5?! { (Mate in 5 → -15.50) Lost forced checkmate sequence. Qxf2+ was best. } (24... Qxf2+ 25. Kd3 Qe2+ 26. Kc3 Qxc2+ 27. Kb4 a5+ 28. Ka3 Nxb5#) 25. Kc1 Nd4 26. c4?! { (-22.11 → Mate in 7) Checkmate is now unavoidable. a3 was best. } (26. a3 Qxf2 27. Kb1 Qxc2+ 28. Ka2 Qb3+ 29. Kb1 Qxd1+ 30. Ka2 Qb3+ 31. Kb1 Qc2+ 32. Ka2 Qxe4) 26... Qxf2 27. Rd2 Qe1+ 28. Rd1 Qxe4 29. Kd2 Kd7 30. Rac1 Rc8 31. b3 Qe2+ 32. Kc3 Nb5+ 33. Kb4 Nd4 34. Kc3 a5 35. Rd2 Nb5+ 36. Kc2 Qe4+?! { (Mate in 7 → -21.21) Lost forced checkmate sequence. Na3+ was best. } (36... Na3+ 37. Kb2 Qxd2+ 38. Kxa3 Qxc1+ 39. Ka4 Rc5 40. h4 Qb1 41. Ka3 Rxc4 42. bxc4 Qb4#) 37. Kd1 Nd4 38. Rg2?! { (-27.50 → Mate in 5) Checkmate is now unavoidable. Rf2 was best. } (38. Rf2 Qd3+) 38... Qxg2 39. Rc2 Qxc2+ 40. Ke1 Qe2# { Black wins by checkmate. } 0-1