[Event "Import"] [Site "https://lichess.org/nqDiA7Ci"] [Date "2017.05.20"] [White "Ronald van den Berg"] [Black "Joan van der Biezen"] [Result "0-1"] [UTCDate "2017.05.20"] [UTCTime "11:28:10"] [WhiteElo "?"] [BlackElo "?"] [Variant "Standard"] [TimeControl "-"] [ECO "A04"] [Opening "Zukertort Opening: Black Mustang Defense"] [Termination "Normal"] [Annotator "lichess.org"] 1. Nf3 Nc6 { A04 Zukertort Opening: Black Mustang Defense } 2. b3 d5 3. Bb2 Bf5 4. d4 f6 5. e3 e6 6. Be2 h6 7. O-O Nge7 8. Nbd2 Qd6 9. c4 Nb4?! { (0.55 → 1.22) Inaccuracy. g5 was best. } (9... g5 10. a3 Bg7 11. b4 a6 12. Bc3 O-O 13. c5 Qd7 14. a4 Nd8 15. h3 Nf7 16. b5) 10. c5 Qc6?! { (0.84 → 1.66) Inaccuracy. Qd7 was best. } (10... Qd7 11. Bc3 a5 12. a3 Nbc6 13. Nh4 Bh7 14. b4 g5 15. Bh5+ Kd8 16. Nhf3 Bd3 17. Re1) 11. Ne1 O-O-O?! { (1.11 → 2.26) Inaccuracy. Qd7 was best. } (11... Qd7 12. a3 Nbc6 13. b4 a6 14. Bc3 e5 15. a4 exd4 16. exd4 Nd8 17. Nc2 Ne6 18. Re1) 12. a3 Na6 13. b4 Nb8 14. a4 Qe8 15. a5?! { (2.23 → 1.22) Inaccuracy. b5 was best. } (15. b5 h5 16. Nd3 c6 17. Bc3 g5 18. Nb4 Rd7 19. Re1 Kd8 20. a5 a6 21. bxa6 bxa6) 15... c6?! { (1.22 → 2.30) Inaccuracy. a6 was best. } (15... a6) 16. Nef3? { (2.30 → 0.73) Mistake. a6 was best. } (16. a6 bxa6 17. f3 Rd7 18. e4 Bg6 19. Bxa6+ Nxa6 20. Rxa6 Rb7 21. b5 cxb5 22. Rxe6 Kb8) 16... a6 17. Ra2 h5 18. Nh4 g5?! { (0.66 → 1.33) Inaccuracy. Be4 was best. } (18... Be4 19. f3 Bh7 20. f4 Nf5 21. Bxh5 g6 22. Nxf5 exf5 23. Be2 Qxe3+ 24. Rf2 Bg7 25. Ra3) 19. Nxf5 Nxf5 20. e4 Ne7 21. h3?! { (1.31 → 0.67) Inaccuracy. exd5 was best. } (21. exd5 Nxd5 22. Nc4 Nd7 23. Nb6+ N7xb6 24. axb6 Kd7 25. Bc4 Ke7 26. Re1 Kf7 27. Qb3 Bh6) 21... Qg6 22. Bd3?! { (1.07 → 0.16) Inaccuracy. exd5 was best. } (22. exd5 Nxd5 23. Nc4 Nd7 24. Nb6+ N7xb6 25. axb6 g4 26. h4 Nf4 27. g3 Nxe2+ 28. Qxe2 Qf7) 22... g4 23. Kh2? { (0.36 → -1.15) Mistake. h4 was best. } (23. h4 dxe4 24. Nxe4 f5 25. Nc3 Bg7 26. Qe2 g3 27. Na4 gxf2+ 28. Qxf2 Nd7 29. Bc4 Bh6) 23... Bh6 24. f3?? { (-1.03 → -3.52) Blunder. h4 was best. } (24. h4 Bxd2) 24... Rdg8 25. Qe2? { (-3.28 → -5.82) Mistake. Rg1 was best. } (25. Rg1 Be3 26. Bc3 Bxg1+ 27. Qxg1 gxf3 28. g3 h4 29. g4 Qh6 30. Qf2 Qf4+ 31. Kg1 Qg3+) 25... gxh3 26. Rf2?! { (-5.61 → -7.97) Inaccuracy. g4 was best. } (26. g4 hxg4 27. fxg4 Bxd2 28. Ba1 dxe4 29. Bxe4 Qxg4 30. Qxg4 Rxg4 31. Rxd2 Rxe4 32. Rxf6 Nd7) 26... Qg3+ 27. Kh1 hxg2+ 28. Rxg2 Qh4+ 29. Rh2 Qf4?? { (-5.27 → -1.83) Blunder. Qg3 was best. } (29... Qg3 30. Qf1 Be3 31. Ra1 Qf4 32. exd5 Nxd5 33. Rd1 h4 34. Qh3 f5 35. Bxf5 Qxf5 36. Nc4) 30. Nf1 h4 31. Bc3 Rg7 32. Be1?? { (-1.19 → -5.07) Blunder. Rg2 was best. } (32. Rg2 Rxg2 33. Qxg2 Qg5 34. Qh3 Nd7 35. Bd2 Qh5 36. Bxh6 Qxh6 37. Qxe6 Rg8 38. Qh3 Qf4) 32... Rhg8 33. Bf2 Qg5 34. Rxh4?? { (-4.40 → Mate in 1) Checkmate is now unavoidable. Qe3 was best. } (34. Qe3 Qg6 35. exd5 Bxe3 36. Bxg6 Bxf2 37. Rhxf2 Nxg6 38. dxe6 Nf4 39. Ne3 Rg1+ 40. Kh2 R1g3) 34... Qg2# { Black wins by checkmate. } 0-1