[Event "1º Encuentro CBTIS 2º M vs N Arena"] [Site "https://lichess.org/82b7Rub8"] [Date "2020.04.28"] [White "Marco_Chama100"] [Black "EstefannyZenil"] [Result "0-1"] [UTCDate "2020.04.28"] [UTCTime "01:43:16"] [WhiteElo "1474"] [BlackElo "1542"] [WhiteRatingDiff "-24"] [BlackRatingDiff "+19"] [Variant "Standard"] [TimeControl "60+0"] [ECO "A04"] [Opening "Zukertort Opening: St. George Defense"] [Termination "Time forfeit"] [Annotator "lichess.org"] 1. Nf3 a6 { A04 Zukertort Opening: St. George Defense } 2. e4 c6 3. b4 b6?! { (0.24 → 1.19) Inaccuracy. d5 was best. } (3... d5 4. e5) 4. Bxa6?? { (1.19 → -3.89) Blunder. d4 was best. } (4. d4 d5 5. Nbd2 e6 6. c3 Nd7 7. Bd3 Ne7 8. h4 h6 9. O-O dxe4 10. Bxe4 Nd5) 4... d6?? { (-3.89 → 1.86) Blunder. Bxa6 was best. } (4... Bxa6 5. d3) 5. Bxc8 Qxc8 6. c4 Qc7 7. Na3?! { (2.31 → 1.50) Inaccuracy. O-O was best. } (7. O-O) 7... Qd7?! { (1.50 → 2.33) Inaccuracy. Nf6 was best. } (7... Nf6 8. d3 g6 9. O-O Bg7 10. Bb2 O-O 11. Qb3 Nbd7 12. Nc2 Nh5 13. Bxg7 Nxg7 14. a4) 8. d4 Qd8?! { (2.15 → 2.82) Inaccuracy. Nf6 was best. } (8... Nf6) 9. Bf4?? { (2.82 → -2.13) Blunder. b5 was best. } (9. b5 c5 10. dxc5 bxc5 11. O-O Nd7 12. Qe2 Ngf6 13. Rd1 e5 14. Nc2 Ra7 15. a4 Qa8) 9... c5?? { (-2.13 → 5.35) Blunder. Rxa3 was best. } (9... Rxa3 10. O-O e6 11. Qc1 Ra8 12. a4 Nf6 13. b5 cxb5 14. e5 Ne4 15. Qc2 bxc4 16. Qxe4) 10. dxc5?? { (5.35 → 0.21) Blunder. Nb5 was best. } (10. Nb5 cxd4 11. e5 Nc6 12. exd6 exd6 13. O-O Be7 14. Re1 Kf8 15. Nfxd4 Nxd4 16. Qxd4 h6) 10... bxc5?? { (0.21 → 5.22) Blunder. Rxa3 was best. } (10... Rxa3 11. cxd6 exd6 12. Nd4 Qf6 13. Bc1 Ra8 14. Nb5 Qxa1 15. Nc7+ Kd8 16. Bg5+ Kxc7 17. Qxa1) 11. bxc5?? { (5.22 → -1.34) Blunder. Nb5 was best. } (11. Nb5 e5 12. bxc5 dxc5 13. Qxd8+ Kxd8 14. Nxe5 Ke7 15. Nc7 Ra7 16. Rb1 Rxc7 17. Rxb8 Nf6) 11... dxc5?? { (-1.34 → 3.23) Blunder. Qa5+ was best. } (11... Qa5+ 12. Ke2) 12. Bxb8? { (3.23 → 1.77) Mistake. Nb5 was best. } (12. Nb5 Qxd1+ 13. Rxd1 Na6 14. O-O f6 15. e5 g5 16. Be3 Kf7 17. Rd7 g4 18. Nd2 fxe5) 12... Ra7?? { (1.77 → 13.77) Blunder. Qxd1+ was best. } (12... Qxd1+) 13. Bf4?? { (13.77 → 2.44) Blunder. Qxd8+ was best. } (13. Qxd8+ Kxd8 14. Bxa7 f6 15. Rb1 Ke8 16. Bxc5 h5 17. Rb7 Kf7 18. Nb5 h4 19. Nfd4 g5) 13... Ra8?? { (2.44 → 8.55) Blunder. Qxd1+ was best. } (13... Qxd1+ 14. Kxd1 Rxa3 15. Kc2 Nf6 16. Rhb1 Nd7 17. Rb7 Ra4 18. Kb3 Rb4+ 19. Rxb4 cxb4 20. Be3) 14. Nc2 e6 15. Nfd4?? { (6.89 → 1.18) Blunder. Qb1 was best. } (15. Qb1 Nf6) 15... Ra7?? { (1.18 → 7.63) Blunder. cxd4 was best. } (15... cxd4 16. O-O Bc5 17. Be5 Nf6 18. Qf3 O-O 19. Rfd1 Nd7 20. Bxd4 Qc7 21. Qc3 Bxd4 22. Nxd4) 16. Ne2 Rb7 17. a4 Ra7 18. a5 Rxa5 19. Rxa5?! { (13.02 → 5.93) Inaccuracy. Qxd8+ was best. } (19. Qxd8+) 19... Qc7?? { (5.93 → Mate in 8) Checkmate is now unavoidable. Qxa5+ was best. } (19... Qxa5+ 20. Qd2 Qxd2+ 21. Kxd2 Nf6 22. f3 Be7 23. Ra1 O-O 24. Ne1 g5 25. Bc7 Rc8 26. Ra7) 20. Na3?? { (Mate in 8 → 3.16) Lost forced checkmate sequence. Ra8+ was best. } (20. Ra8+ Ke7 21. Bxc7 Kf6 22. e5+ Kg6 23. Nf4+ Kf5 24. Ne3+ Ke4 25. Qf3+ Kd4 26. Nc2+ Kxc4) 20... Qc8?? { (3.16 → 23.35) Blunder. Qxa5+ was best. } (20... Qxa5+ 21. Qd2) 21. Rxc5 Qc7? { (7.35 → Mate in 6) Checkmate is now unavoidable. Bxc5 was best. } (21... Bxc5 22. Qa4+ Kf8 23. O-O Nf6 24. e5 Nd7 25. Nb5 Nb6 26. Qb3 h5 27. Nd6 Qc6 28. Be3) 22. Nb5?! { (Mate in 6 → 11.12) Lost forced checkmate sequence. Rxc7 was best. } (22. Rxc7 Bb4+ 23. Kf1 Nf6 24. Qa4+ Kf8 25. Qxb4+ Kg8 26. Rc8+ Ne8 27. Rxe8#) 22... Qd7 23. Nbd4 Qd8? { (7.33 → Mate in 7) Checkmate is now unavoidable. Bxc5 was best. } (23... Bxc5 24. O-O) 24. Nxe6?! { (Mate in 7 → 10.65) Lost forced checkmate sequence. Qa4+ was best. } (24. Qa4+ Qd7 25. Rc8+ Ke7 26. Qa3+ Qd6 27. Qxd6+ Kf6 28. Qe5+ Ke7 29. Nf5+ Kd7 30. Qc7#) 24... fxe6 25. Rc6 e5 26. Bxe5 Ke7 27. Bxg7 Bxg7 { Black wins on time. } 0-1