[Event "XV Open Nacional Univ. 2021 Arena"] [Site "https://lichess.org/V3AmcXR5"] [Date "2021.06.28"] [White "JhovanCamacho_UTP"] [Black "Back_inBlack"] [Result "0-1"] [UTCDate "2021.06.28"] [UTCTime "01:10:52"] [WhiteElo "2068"] [BlackElo "1729"] [WhiteRatingDiff "-10"] [BlackRatingDiff "+16"] [Variant "Standard"] [TimeControl "240+0"] [ECO "A30"] [Opening "English Opening: Symmetrical Variation"] [Termination "Normal"] [Annotator "lichess.org"] 1. Nf3 c5 2. c4 { A30 English Opening: Symmetrical Variation } Nc6 3. g3 d6 4. Bg2 e5 5. O-O e4?! { (0.32 → 0.94) Inaccuracy. f5 was best. } (5... f5 6. a3 a5 7. d3 Nf6 8. Nc3 Be7 9. e3 O-O 10. Nd2) 6. Nh4?? { (0.94 → -3.46) Blunder. Ne1 was best. } (6. Ne1 h5 7. Nc3 h4 8. Nxe4 Nf6 9. Nc3 Be7 10. Nf3 h3) 6... Be7?? { (-3.46 → -1.30) Blunder. g5 was best. } (6... g5 7. Nc3) 7. Bxe4 Bxh4 8. gxh4 Qxh4 9. e3?? { (-1.16 → -6.44) Blunder. Bg2 was best. } (9. Bg2 Bh3) 9... Qxe4 10. d3 Qg6+ 11. Kh1 Be6 12. Nc3 Nf6 13. a3?! { (-5.33 → -7.18) Inaccuracy. Rg1 was best. } (13. Rg1 Qh5) 13... Nd7?! { (-7.18 → -4.55) Inaccuracy. Ne5 was best. } (13... Ne5) 14. b3?! { (-4.55 → -5.83) Inaccuracy. Rg1 was best. } (14. Rg1 Qf6) 14... Qg4 15. Qe1?? { (-5.15 → Mate in 3) Checkmate is now unavoidable. f3 was best. } (15. f3 Qh4) 15... Nb6?? { (Mate in 3 → -5.15) Lost forced checkmate sequence. Qf3+ was best. } (15... Qf3+ 16. Kg1 Bh3 17. Qe2 Qg2#) 16. Bb2?? { (-5.15 → Mate in 3) Checkmate is now unavoidable. f3 was best. } (16. f3 Qh5 17. Qg3 O-O-O 18. e4 Qe5 19. Qe1 f5 20. f4 Qd4 21. Rf3 Nd7 22. Re3 Qf6) 16... d5?? { (Mate in 3 → -4.68) Lost forced checkmate sequence. Qf3+ was best. } (16... Qf3+ 17. Kg1 Bh3 18. a4 Qg2#) 17. cxd5?? { (-4.68 → Mate in 3) Checkmate is now unavoidable. f3 was best. } (17. f3 Qh3 18. e4 d4 19. Nd5 O-O-O 20. Nf4 Qh6 21. Qg3 f5 22. Nd5 Nxd5 23. cxd5 f4) 17... Nxd5?? { (Mate in 3 → -5.19) Lost forced checkmate sequence. Qf3+ was best. } (17... Qf3+ 18. Kg1 Bh3 19. dxc6 Qg2#) 18. Ne2? { (-5.19 → -11.63) Mistake. f3 was best. } (18. f3) 18... Nf6? { (-11.63 → -4.63) Mistake. Qf3+ was best. } (18... Qf3+ 19. Kg1) 19. Rg1? { (-4.63 → -10.24) Mistake. f3 was best. } (19. f3 Qg5 20. Qf2 O-O-O 21. Rg1 Qh6 22. b4 Rxd3 23. Nf4 Rhd8 24. Nxd3 Rxd3 25. Rac1 c4) 19... Qf3+ 20. Rg2 Bh3 21. Nf4 Bxg2+ 22. Nxg2 O-O-O 23. b4 h5 24. b5 Ne7 25. Kg1 h4 26. Nf4 h3 27. Qa5 Qg4+ 28. Kf1 g5 29. Qxa7 gxf4 30. Qxc5+ Kd7?! { (-9.95 → -5.40) Inaccuracy. Nc6 was best. } (30... Nc6 31. Bxf6 Rxd3 32. Qc2 Rd6 33. f3 Qxf3+ 34. Qf2 Qh1+ 35. Qg1 Qxg1+ 36. Kxg1 Rxf6 37. Kf2) 31. Be5? { (-5.40 → -15.57) Mistake. Bxf6 was best. } (31. Bxf6 Qg2+ 32. Ke1 Nd5 33. e4 Nxf6 34. Qf5+ Ke7 35. Qe5+ Kf8 36. Qxf6 Qg1+ 37. Ke2 Qg4+) 31... Qg2+ 32. Ke1 Nfd5 33. Qd6+ Ke8 34. Bxh8 f6 35. Qe6?! { (-12.28 → Mate in 11) Checkmate is now unavoidable. Qxd8+ was best. } (35. Qxd8+ Kxd8) 35... Qg1+?! { (Mate in 11 → -16.31) Lost forced checkmate sequence. fxe3 was best. } (35... fxe3 36. fxe3 Qg1+ 37. Ke2 Qxh2+ 38. Ke1 Qg1+ 39. Ke2 Qg2+ 40. Ke1 h2 41. Qh3 Qxh3 42. Kf2) 36. Kd2?! { (-16.31 → Mate in 8) Checkmate is now unavoidable. Ke2 was best. } (36. Ke2 Nc3+) 36... Qxa1?! { (Mate in 8 → -13.54) Lost forced checkmate sequence. Qxf2+ was best. } (36... Qxf2+ 37. Kc1 Qe1+ 38. Kc2 Qe2+ 39. Kc1 Nxe3 40. Qb3 Rc8+ 41. Kb1 Rc2 42. Qf7+ Kxf7 43. a4) 37. Bxf6 Qxf6 38. Qxh3 Qb2+ 39. Ke1 Nc3 40. Qh8+ Kd7 41. Qd4+ Ned5?! { (Mate in 6 → -19.50) Lost forced checkmate sequence. Ke6 was best. } (41... Ke6 42. Qxc3 Qxc3+ 43. Ke2 Qxd3+ 44. Kf3 Rg8 45. a4 Kf5 46. b6 Qd1#) 42. Qc4?! { (-19.50 → Mate in 1) Checkmate is now unavoidable. Qg7+ was best. } (42. Qg7+ Kc8) 42... Qe2# { Black wins by checkmate. } 0-1