[Event "Tata Steel Chess Tournament 2021"] [Site "Wijk aan Zee, Netherlands"] [Date "2021.01.31"] [Round "13.4"] [White "Van Foreest, Jorden"] [Black "Grandelius, Nils"] [Result "1-0"] [WhiteElo "2671"] [BlackElo "2663"] [Variant "Standard"] [TimeControl "-"] [ECO "B90"] [Opening "Sicilian Defense: Najdorf Variation"] [Termination "Normal"] [Annotator "lichess.org"] 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 { B90 Sicilian Defense: Najdorf Variation } 6. Qd3 Nbd7 7. Be2 b5 8. a4 Nc5 9. Qe3 b4 10. Nd5 Ncxe4 11. a5?! { (-0.23 → -0.81) Inaccuracy. Nxb4 was best. } (11. Nxb4 e5) 11... Nxd5 12. Qxe4 e6 13. O-O Bd7?! { (-0.28 → 0.31) Inaccuracy. Bb7 was best. } (13... Bb7) 14. Bd2 Be7 15. Bf3 O-O 16. Qd3 Qb8 17. c4 bxc3 18. bxc3 Ra7 19. Rfb1 Qc8 20. c4 Nf6 21. Nb5 axb5 22. cxb5 Bxb5 23. Qxb5 Nd7?! { (1.32 → 1.93) Inaccuracy. Nd5 was best. } (23... Nd5 24. Bxd5 exd5 25. Qxd5 Qa8 26. Qd3 Bf6 27. Ra3 h6 28. Rab3 Rc8 29. Qxd6 Qc6 30. Qxc6) 24. Bb7 Qd8 25. a6 Bf6 26. Ba5 Qe8 27. Bc7?! { (1.96 → 1.34) Inaccuracy. Ra2 was best. } (27. Ra2 Bd4) 27... Bxa1 28. Rxa1?! { (1.62 → 0.66) Inaccuracy. Bxd6 was best. } (28. Bxd6 Bd4 29. Bxf8 Kxf8 30. Rc1 Nc5 31. Rxc5 Qxb5 32. Rxb5 g6 33. Kf1 Kg7 34. Ke2 h5) 28... d5?? { (0.66 → 3.28) Blunder. Nc5 was best. } (28... Nc5 29. Qb6 Qd7 30. h3 Nxa6 31. Rxa6 Rxa6 32. Bxa6 d5 33. Bb5 Qc8 34. Bd6 Rd8 35. Kh2) 29. Bd6 Qd8 30. Rc1 g6? { (2.90 → 4.97) Mistake. Re8 was best. } (30... Re8 31. h3) 31. h3?! { (4.97 → 3.83) Inaccuracy. Bxf8 was best. } (31. Bxf8) 31... Re8 32. Rc7 Nf6 33. Be5 Ne4 34. Qc6 Rf8 35. Bd4?! { (4.59 → 3.65) Inaccuracy. Rc8 was best. } (35. Rc8 Qe7) 35... Qb8 36. f3 Rxa6 37. Bxa6 Qb4 38. Be5 Qe1+ 39. Kh2 Nf2 40. Qc3 Qh1+?! { (5.05 → 7.99) Inaccuracy. Qxc3 was best. } (40... Qxc3 41. Bxc3) 41. Kg3 Qg1 42. Rc8 Nh1+ 43. Kh4 Qf2+ 44. g3 g5+ 45. Kxg5 f6+ 46. Kh6 fxe5 47. Qxe5 { Black resigns. } 1-0