[Event "Aberto Escolar de Xadrez Sub17"] [Site "https://lichess.org/UT7YJ59v"] [Date "2021.08.11"] [White "Jose_fernandoap"] [Black "EricFC"] [Result "0-1"] [UTCDate "2021.08.11"] [UTCTime "22:03:39"] [WhiteElo "813"] [BlackElo "1806"] [WhiteRatingDiff "+0"] [BlackRatingDiff "+0"] [Variant "Standard"] [TimeControl "600+5"] [ECO "A04"] [Opening "Zukertort Opening: Slav Invitation"] [Termination "Normal"] [Annotator "lichess.org"] 1. Nf3 c6 { A04 Zukertort Opening: Slav Invitation } 2. g3 d5 3. Bg2 Nf6 4. O-O Bf5 5. Na3?! { (0.40 → -0.26) Inaccuracy. d3 was best. } (5. d3 e6 6. c4 dxc4 7. dxc4 Nbd7 8. Nh4 Be4 9. Bxe4 Nxe4) 5... Nbd7 6. b3 e5 7. d3 Bd6?! { (-0.46 → 0.43) Inaccuracy. Qa5 was best. } (7... Qa5 8. Nb1) 8. Nb1?! { (0.43 → -0.52) Inaccuracy. e4 was best. } (8. e4 Bg4 9. exd5 cxd5 10. Nb5 Be7 11. h3 Bf5 12. c4 O-O 13. g4 Be6 14. Re1 a6) 8... O-O 9. Nh4 Be6 10. a4 a6 11. Nf3 h6 12. h3 b5 13. axb5 axb5 14. Rxa8 Qxa8 15. Bb2 Qa2 16. Bc3? { (-1.09 → -2.89) Mistake. Qc1 was best. } (16. Qc1 Ra8) 16... b4 17. Be1 Ra8 18. Bd2 Qb2 19. c3? { (-2.48 → -4.05) Mistake. Qc1 was best. } (19. Qc1) 19... c5 20. Bc1? { (-4.25 → -7.23) Mistake. Qc1 was best. } (20. Qc1 Ra2 21. cxb4 cxb4 22. Qxb2 Rxb2 23. Rc1 Rxb3 24. Be1 Kf8 25. Nbd2 Rb2 26. g4 g5) 20... Qxb1 21. Qd2 Ra2 22. Qe1 Qxb3 23. Nd2 Qxc3 24. Qd1 Nf8 25. g4 e4 26. dxe4 dxe4 27. Kh1 b3 28. Nxe4 Nxe4 29. Bxe4?! { (-13.85 → Mate in 2) Checkmate is now unavoidable. Kg1 was best. } (29. Kg1 Ng3) 29... Qxh3+ 30. Kg1 Qh2# { Black wins by checkmate. } 0-1