[Event "NK12"] [Site "?"] [Date "2009.05.22"] [Round "6"] [White "Schilstra, Laurens"] [Black "Beerdsen, Thomas"] [Result "0-1"] [WhiteElo "?"] [BlackElo "?"] [Variant "Standard"] [TimeControl "-"] [ECO "B98"] [Opening "Sicilian Defense: Najdorf Variation"] [Termination "Unknown"] [Annotator "lichess.org"] 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 { B98 Sicilian Defense: Najdorf Variation } 8. Qf3 Qb6 9. O-O-O Nc6 10. Nb3?! { (1.05 → 0.44) Inaccuracy. Nxc6 was best. } (10. Nxc6 Qxc6) 10... Bd7?! { (0.44 → 1.03) Inaccuracy. Qc7 was best. } (10... Qc7 11. g4 b5 12. Bxf6 gxf6 13. Bd3 b4 14. Nd5 exd5 15. exd5 Na5 16. Nd4 Qc5 17. Qe2) 11. Bd3 Rc8 12. Rhe1 Na5?? { (0.32 → 2.44) Blunder. h6 was best. } (12... h6 13. Bh4 Qc7 14. Kb1 b5 15. Bf2 O-O 16. g4 Nb4 17. g5 hxg5 18. fxg5 Nxd3 19. cxd3) 13. Nxa5?? { (2.44 → 0.10) Blunder. e5 was best. } (13. e5) 13... Qxa5 14. Kb1? { (0.33 → -0.80) Mistake. Bxf6 was best. } (14. Bxf6 Bxf6 15. e5 dxe5 16. Qxb7 exf4 17. Nd5 Bd8 18. Kb1 Qc5 19. Nxf4 Be7 20. c3 Rc7) 14... Rxc3 15. bxc3 Qxc3?! { (-0.41 → 0.26) Inaccuracy. d5 was best. } (15... d5 16. f5 dxe4 17. Bxe4 Nxe4 18. Rxe4 Bxg5 19. Qg3 Bf6 20. fxe6 fxe6 21. Qb8+ Qd8 22. Rxe6+) 16. e5? { (0.26 → -1.05) Mistake. Bf1 was best. } (16. Bf1) 16... d5?? { (-1.05 → 0.62) Blunder. Qb4+ was best. } (16... Qb4+ 17. Ka1) 17. Be2?? { (0.62 → -2.21) Blunder. Bf5 was best. } (17. Bf5 Qxf3 18. gxf3 Ng8 19. Bd3 Ba4 20. Bxe7 Nxe7 21. f5 exf5 22. Rd2 Bc6 23. f4 Ng6) 17... Ne4 18. Qd3?? { (-2.10 → -5.60) Blunder. Bxe7 was best. } (18. Bxe7 Kxe7 19. Qxc3 Nxc3+ 20. Kc1 Nxd1 21. Rxd1 Rc8 22. Rd4 Rc5 23. Rb4 Bc6 24. g4 a5) 18... Ba3? { (-5.60 → -3.02) Mistake. Bxg5 was best. } (18... Bxg5 19. fxg5 Bb5 20. Qxc3 Nxc3+ 21. Kb2 Nxe2 22. g3 h6 23. a4 Bc4 24. Rd2 hxg5 25. Rdxe2) 19. Qxc3 Nxc3+ 20. Ka1 Nxd1 21. Rxd1 O-O 22. Rd3 Bc5 23. Kb2?? { (-2.77 → -6.99) Blunder. Rg3 was best. } (23. Rg3 Rc8) 23... Bb5 { Black wins. } 0-1