[Event "2021 Mathematics Season Tour"] [Site "https://lichess.org/dWfX3XOa"] [Date "2021.11.12"] [White "Kristoff_Villanueva"] [Black "PrinceRitch"] [Result "0-1"] [UTCDate "2021.11.12"] [UTCTime "03:36:39"] [WhiteElo "1338"] [BlackElo "1208"] [WhiteRatingDiff "-51"] [BlackRatingDiff "+62"] [Variant "Standard"] [TimeControl "300+2"] [ECO "A06"] [Opening "Zukertort Opening: Reversed Mexican Defense"] [Termination "Normal"] [Annotator "lichess.org"] 1. Nf3 d5 2. Nc3 { A06 Zukertort Opening: Reversed Mexican Defense } d4 3. Ne4 Bf5? { (-0.37 → 1.23) Mistake. e5 was best. } (3... e5 4. e3 f5 5. Ng3 dxe3 6. dxe3 Qxd1+ 7. Kxd1 Nc6 8. Bb5) 4. Ng3 e6 5. e3?! { (1.30 → 0.36) Inaccuracy. Nxf5 was best. } (5. Nxf5 exf5 6. c3 dxc3 7. bxc3 Nd7 8. g3 g6 9. Bg2 Ngf6 10. d4 Bg7 11. Rb1 Nb6) 5... Nc6?! { (0.36 → 1.29) Inaccuracy. dxe3 was best. } (5... dxe3 6. dxe3 Qxd1+ 7. Kxd1 Bg6 8. h4 h6 9. h5 Bh7 10. Bd3 Nf6 11. Bxh7 Nxh7 12. b3) 6. exd4 Nxd4 7. Nxd4 Qxd4 8. c3?! { (0.70 → 0.12) Inaccuracy. Nxf5 was best. } (8. Nxf5 exf5) 8... Qf4?? { (0.12 → 2.51) Blunder. Qe5+ was best. } (8... Qe5+ 9. Qe2 Qxe2+ 10. Bxe2 Bc2 11. d4 Nf6 12. Nf1 Ba4 13. h4 h5 14. Bg5 c5 15. dxc5) 9. Ne2?? { (2.51 → -0.07) Blunder. d4 was best. } (9. d4 Qd6) 9... Qe4 10. d3? { (-0.01 → -1.20) Mistake. f3 was best. } (10. f3) 10... Qxd3 11. Qa4+ c6?! { (-1.72 → -1.00) Inaccuracy. Qd7 was best. } (11... Qd7) 12. Nf4?! { (-1.00 → -1.96) Inaccuracy. Nd4 was best. } (12. Nd4 Qe4+ 13. Be2 Bc5 14. f3 Qd5 15. Bf4 Bxd4 16. O-O-O e5 17. Bc4 Qd7 18. Rhe1 b5) 12... Qd8?! { (-1.96 → -1.28) Inaccuracy. Qc2 was best. } (12... Qc2 13. Qxc2) 13. Nd3?? { (-1.28 → -7.85) Blunder. Nh5 was best. } (13. Nh5 Bg6 14. Be2 Bxh5 15. Bxh5 Bd6 16. Bf3 h6 17. O-O Nf6 18. Rd1 O-O 19. Bf4 Nd5) 13... Bxd3 14. Bxd3 Qxd3 15. Qb3 Qe4+ 16. Kd1 O-O-O+ 17. Bd2 Qxg2 18. Kc2 Qe4+ 19. Kd1 Qxh1+ 20. Kc2 Qxa1 21. Bc1 Rd5 22. a4 b6 23. c4 Rf5 24. f4 Nf6 25. h4 Bd6 26. Qh3 Qxa4+ 27. Kb1 Qxc4 28. b3?! { (-24.94 → Mate in 8) Checkmate is now unavoidable. Qc3 was best. } (28. Qc3 Qxc3) 28... Qe4+ 29. Kb2 Qb4?! { (Mate in 7 → -22.77) Lost forced checkmate sequence. Ra5 was best. } (29... Ra5 30. b4 Qe2+ 31. Kb3 Qa2+ 32. Kc3 Bxb4+ 33. Kd4 Rd5+ 34. Ke3 Bc5+ 35. Kf3 Qf2#) 30. h5 Qd4+ 31. Kc2?! { (-26.08 → Mate in 6) Checkmate is now unavoidable. Qc3 was best. } (31. Qc3 Qxc3+) 31... Bxf4 32. h6 Rc5+ 33. Kb1 Rxc1+ 34. Ka2 Ra1# { Black wins by checkmate. } 0-1