[Event "Bidasoa Eskola Otoño 2021 6 B"] [Site "https://lichess.org/VlXeEl1k"] [Date "2021.11.14"] [White "EgoitzBC"] [Black "Mamahuevo23"] [Result "0-1"] [UTCDate "2021.11.14"] [UTCTime "09:55:51"] [WhiteElo "669"] [BlackElo "817"] [WhiteRatingDiff "-34"] [BlackRatingDiff "+12"] [Variant "Standard"] [TimeControl "420+4"] [ECO "D02"] [Opening "Queen's Pawn Game: Symmetrical Variation"] [Termination "Normal"] [Annotator "lichess.org"] 1. d4 d5 2. Nf3 Nf6 { D02 Queen's Pawn Game: Symmetrical Variation } 3. Nc3 Nc6 4. e3 e6 5. Bb5 Bb4 6. O-O O-O 7. h3 Na5 8. Bd2 Nc4?! { (0.24 → 1.19) Inaccuracy. c5 was best. } (8... c5 9. a3 Bxc3 10. Bxc3 Ne4 11. Qe1 Nxc3 12. Qxc3 a6 13. Be2 cxd4 14. Qxd4 Bd7 15. b4) 9. Bxc4 dxc4 10. Nb1?! { (1.07 → 0.20) Inaccuracy. Ne5 was best. } (10. Ne5) 10... Ne4?? { (0.20 → 8.22) Blunder. Be7 was best. } (10... Be7) 11. Bxb4 c5 12. dxc5 a5 13. Be1?? { (8.27 → -7.84) Blunder. Bc3 was best. } (13. Bc3 Qe7) 13... Qxd1 14. Nfd2 Qe2? { (-8.76 → -4.23) Mistake. Ng5 was best. } (14... Ng5 15. h4 Nh3+ 16. Kh1 e5 17. Nxc4 Be6 18. b3 Rac8 19. Nd6 Rxc5 20. Ne4 Rc6 21. Kh2) 15. Nf3? { (-4.23 → -8.57) Mistake. Nxe4 was best. } (15. Nxe4 Qxc2 16. Nbc3 b5 17. f3 f5 18. Rf2 Qd3 19. Rd1 Qxe3 20. Bd2 Qd3 21. Bg5 Qxd1+) 15... Qxc2 16. Nd4 Qxb2 17. Nb3 cxb3 18. axb3 Qxa1 19. Bc3 Qxb1 20. Rxb1 Nxc3 21. Rf1 b5 22. Rc1 Na2 23. Rc4 bxc4 24. bxc4 a4 25. c6 Nc3 26. f4 a3 27. e4?! { (-28.16 → Mate in 6) Checkmate is now unavoidable. f5 was best. } (27. f5 exf5) 27... a2?! { (Mate in 6 → -28.77) Lost forced checkmate sequence. Nxe4 was best. } (27... Nxe4 28. Kh1 a2 29. Kh2 a1=Q 30. c7 Ra2 31. c5 Qb2 32. f5 Qxg2#) 28. e5?! { (-28.77 → Mate in 5) Checkmate is now unavoidable. Kf2 was best. } (28. Kf2 a1=R) 28... a1=Q+ 29. Kh2 Ne4 30. g4 Ra3 31. f5 exf5 32. gxf5 Bxf5 33. c7 Rc8 34. c5 Rxc7 35. e6 Rxc5 36. exf7+ Kxf7 37. h4 Rc2# { Black wins by checkmate. } 0-1