[Event "ESCUELA MUNICIPAL CAÑETE Arena"] [Site "https://lichess.org/Gh5sx0TK"] [Date "2021.02.01"] [White "Josemaria_Condori"] [Black "DerekSosa2302"] [Result "0-1"] [UTCDate "2021.02.01"] [UTCTime "16:48:13"] [WhiteElo "1720"] [BlackElo "1679"] [WhiteRatingDiff "-124"] [BlackRatingDiff "+113"] [Variant "Standard"] [TimeControl "300+0"] [ECO "A00"] [Opening "Polish Opening: Symmetrical Variation"] [Termination "Time forfeit"] [Annotator "lichess.org"] 1. b4 b5 { A00 Polish Opening: Symmetrical Variation } 2. c4?! { (0.13 → -0.91) Inaccuracy. e3 was best. } (2. e3 e6 3. Bxb5 Bxb4 4. Nf3 Nf6 5. Be2 O-O 6. O-O c5) 2... Na6? { (-0.91 → 0.62) Mistake. bxc4 was best. } (2... bxc4 3. e4 Bb7 4. Nc3 e6 5. Bxc4 Nf6 6. Qe2 Bxb4 7. Rb1) 3. Na3? { (0.62 → -0.78) Mistake. cxb5 was best. } (3. cxb5) 3... Nxb4?! { (-0.78 → 0.27) Inaccuracy. bxc4 was best. } (3... bxc4) 4. Rb1? { (0.27 → -1.03) Mistake. Nxb5 was best. } (4. Nxb5) 4... bxc4?? { (-1.03 → 2.37) Blunder. Nxa2 was best. } (4... Nxa2 5. Bb2) 5. Nxc4?? { (2.37 → -1.17) Blunder. Rxb4 was best. } (5. Rxb4) 5... Nxa2 6. Nb6?? { (-0.84 → -7.09) Blunder. Ba3 was best. } (6. Ba3 c5 7. Bxc5 Qc7 8. Qa4 Qxc5 9. Qxa2 Qc7 10. e3 Nf6 11. Nf3 Bb7 12. Be2 e6) 6... cxb6? { (-7.09 → -4.12) Mistake. axb6 was best. } (6... axb6) 7. Ra1? { (-4.12 → -7.56) Mistake. Ba3 was best. } (7. Ba3) 7... Nxc1 8. Rxc1 Bb7 9. h4 Qb8 10. Rh3 h5 11. Rf3 a5 12. Ra1 a4 13. Rxa4 Rxa4 14. Qxa4 Bxf3 15. exf3 Rh6 16. Qd1 Rd6 17. Nh3 Rxd2? { (-8.28 → -4.45) Mistake. b5 was best. } (17... b5 18. g3) 18. Qxd2 d5?? { (-4.56 → 0.18) Blunder. Qe5+ was best. } (18... Qe5+ 19. Be2 Qa5 20. Bd3 Nf6 21. Ke2 e6 22. g3 Qxd2+ 23. Kxd2 g6 24. Bc4 Bb4+ 25. Ke2) 19. Qd1?? { (0.18 → -2.73) Blunder. Bb5+ was best. } (19. Bb5+ Kd8 20. Qxd5+ Qd6 21. Qa8+ Kc7 22. Qa4 e6 23. Kf1 Kb8 24. g3 Nf6 25. Ng5 Qb4) 19... e5?? { (-2.73 → 0.00) Blunder. Qa8 was best. } (19... Qa8) 20. Qa4+? { (0.00 → -1.14) Mistake. Bb5+ was best. } (20. Bb5+ Ke7 21. Qxd5 Qd6 22. Qb7+ Kf6 23. Ke2 Qd4 24. Qc6+ Qd6) 20... Ke7?! { (-1.14 → -0.12) Inaccuracy. Kd8 was best. } (20... Kd8 21. Ng5) 21. Qb4+?? { (-0.12 → -3.23) Blunder. Ng5 was best. } (21. Ng5) 21... Kd8?? { (-3.23 → 6.24) Blunder. Qd6 was best. } (21... Qd6 22. Qd2) 22. Qd2?? { (6.24 → -3.63) Blunder. Qxf8+ was best. } (22. Qxf8+ Kc7) 22... f5?? { (-3.63 → 0.00) Blunder. Qa8 was best. } (22... Qa8 23. Ng5 Bc5 24. Bc4 Nf6 25. Ba2 Ke7 26. Kf1 Qa6+ 27. Kg1 Qa5 28. Qe2 Kf8 29. g3) 23. Bb5? { (0.00 → -1.44) Mistake. Qxd5+ was best. } (23. Qxd5+ Qd6 24. Qxg8 Qb4+ 25. Ke2 Qb2+ 26. Kd3 Qb1+ 27. Kd2 Qb2+) 23... Qc7? { (-1.44 → 0.15) Mistake. Qa8 was best. } (23... Qa8 24. Ng5) 24. Ng5 Qc1+?? { (0.00 → Mate in 8) Checkmate is now unavoidable. Ke7 was best. } (24... Ke7 25. Qxd5 Qc1+ 26. Ke2 Qb2+ 27. Kd3 Qa3+ 28. Ke2) 25. Qxc1 d4 26. Nh7 Nf6 27. Nxf8 Nh7 28. Qd1?! { (Mate in 3 → 11.14) Lost forced checkmate sequence. Qc6 was best. } (28. Qc6 Nxf8 29. Qd6+ Kc8 30. Ba6#) 28... Nxf8 29. Ba6 Nd7 30. Bd3 f4 31. Bf5 Nc5 32. Qa1 Nd3+ 33. Kf1 Ne1?! { (11.97 → Mate in 4) Checkmate is now unavoidable. Kc7 was best. } (33... Kc7 34. Qa7+ Kc6 35. Qd7+ Kc5 36. Bxd3 Kb4 37. Qxg7 Kc3 38. Be4 Kb4 39. Qxe5 Kc3 40. Qb5) 34. Qxe1 e4 35. Qxe4 g5 36. Qa8+ Ke7 37. Qa7+ Kd6 38. Qxb6+ Kd5 39. Qb5+ Kd6 40. Qb6+ Kd5 41. Qb5+ Kd6 { Black wins on time. } 0-1