[Event "Torneo Nacional CIP 2021"] [Site "https://lichess.org/8NyzjLeB"] [Date "2021.06.05"] [White "Cesar_Chavez_2009"] [Black "omarmedinahos"] [Result "0-1"] [UTCDate "2021.06.05"] [UTCTime "20:40:01"] [WhiteElo "2061"] [BlackElo "1500"] [WhiteRatingDiff "-237"] [BlackRatingDiff "+699"] [Variant "Standard"] [TimeControl "2400+0"] [ECO "B06"] [Opening "Modern Defense: Mongredien Defense, with Nf3"] [Termination "Normal"] [Annotator "lichess.org"] 1. e4 g6 2. d4 Bg7 3. Nf3 b6?! { (0.61 → 1.28) Inaccuracy. d6 was best. } { B06 Modern Defense: Mongredien Defense, with Nf3 } (3... d6 4. c3 Nf6 5. Bd3 O-O 6. O-O Nbd7 7. h3 e5 8. Re1) 4. c4 Bb7 5. Nc3 e6 6. Bf4 Ne7 7. Be2 d6 8. Qd3 Nd7 9. Qe3?! { (0.93 → 0.32) Inaccuracy. Rd1 was best. } (9. Rd1 h6 10. h4 f5 11. exf5 O-O 12. Bxh6 Bxh6 13. fxe6 Nf6 14. d5 c6 15. dxc6 Bxc6) 9... O-O 10. e5?? { (0.48 → -3.18) Blunder. Bh6 was best. } (10. Bh6 d5) 10... Nf5 11. Qd3?! { (-3.07 → -4.46) Inaccuracy. Qd2 was best. } (11. Qd2) 11... dxe5 12. dxe5 Nc5?! { (-4.09 → -2.76) Inaccuracy. Bxf3 was best. } (12... Bxf3 13. Qxf3 Nd4 14. Qd3 Nxe5 15. Qd2 Qe7 16. O-O-O Rad8 17. Qe3 Nf5 18. Qe4 Nd6 19. Qc2) 13. Qxd8 Raxd8 14. O-O h6 15. Rad1 g5 16. Bg3 Nd7?! { (-3.41 → -2.60) Inaccuracy. g4 was best. } (16... g4) 17. Nb5 Nxg3 18. fxg3?! { (-2.62 → -4.10) Inaccuracy. hxg3 was best. } (18. hxg3 Nxe5) 18... Nxe5 19. Nxc7 Ng4 20. Nb5?! { (-4.35 → -5.64) Inaccuracy. Nxg5 was best. } (20. Nxg5 Rxd1 21. Rxd1 Ne3 22. Ngxe6 Nxd1 23. Nxf8 Bd4+ 24. Kf1 Ne3+ 25. Ke1 Kxf8 26. Nb5 Nxg2+) 20... Ne3 21. Rxd8 Rxd8 22. Rb1 Bxf3?? { (-5.72 → -2.56) Blunder. a6 was best. } (22... a6 23. Nc3) 23. gxf3 Rd2 24. Kf2 Nxc4 25. b3 Ne5 26. Nxa7 Rxa2 27. Nb5 Nd3+ 28. Ke3 Nb4 29. Nd6?! { (-3.77 → -5.86) Inaccuracy. Bc4 was best. } (29. Bc4 Rxh2) 29... Nd5+ 30. Kf2 Nc3 31. Re1 g4?! { (-4.84 → -3.31) Inaccuracy. Bd4+ was best. } (31... Bd4+ 32. Kf1 Kf8 33. b4 Rb2 34. Nc4 Rxb4 35. Bd3 b5 36. Nd6 Rb3 37. Nxb5 Nxb5 38. Bxb5) 32. b4?? { (-3.31 → -7.38) Blunder. fxg4 was best. } (32. fxg4 Bf8 33. Nc4 b5 34. Ne5 Rb2 35. Kf1 Rxb3 36. g5 Nxe2 37. Kxe2 hxg5 38. Rf1 f5) 32... gxf3? { (-7.38 → -3.66) Mistake. Bd4+ was best. } (32... Bd4+ 33. Kf1 gxf3 34. Bxf3 Rf2+ 35. Kg1 Rxf3+ 36. Kg2 Rf2+ 37. Kh3 Kf8 38. b5 Ke7 39. Ne4) 33. Kxf3 Bf8 34. Nc4 Bxb4 35. Nxb6 Nd5?? { (-4.41 → -1.07) Blunder. Ne4 was best. } (35... Ne4 36. Kxe4 Bxe1 37. Kf3 Bb4 38. Nd7 Bd6 39. Nf6+ Kf8 40. Ng4 Kg7 41. Nxh6 Kxh6 42. Bb5) 36. Rb1 Ra3+ 37. Kg4 Ne3+?! { (-1.18 → -0.31) Inaccuracy. Nf6+ was best. } (37... Nf6+ 38. Kh3 Bc5 39. Nc4 Rc3 40. Ne5 Bd6 41. Nf3 Nd5 42. Bd1 Rd3 43. Be2 Re3 44. Rb2) 38. Kh5?? { (-0.31 → -3.07) Blunder. Kh3 was best. } (38. Kh3 Ra2 39. Rxb4 Rxe2 40. Re4 Rb2 41. Rxe3 Rxb6 42. Re4 Kg7 43. Rg4+ Kh7 44. Rf4 Rb7) 38... Ra5+ 39. Kh4 Be7+?? { (-3.17 → -1.12) Blunder. Ra2 was best. } (39... Ra2) 40. Kh3 h5?! { (-1.13 → -0.26) Inaccuracy. Ra2 was best. } (40... Ra2) 41. Nc4 Nxc4 42. Bxc4 Rc5 43. Be2 Kg7 44. Rb7 Bg5 45. Bxh5 Be3 46. Rxf7+ Kh6 47. g4 Bd4 48. Re7 e5 49. Kg3 Rc3+ 50. Kh4?? { (0.00 → Mate in 1) Checkmate is now unavoidable. Kg2 was best. } (50. Kg2 Kg5 51. Rg7+ Kh4 52. Bg6 Rb3 53. Rf7 Kxg4 54. h3+ Kh4 55. Rf3 Rb2+ 56. Kf1 Bb6) 50... Bf2# { Black wins by checkmate. } 0-1