[Event "Grand Prix Hamburg 2019"] [White "Grischuk, Alexander"] [Black "Wojtaszek, Radoslaw"] [Site "Hamburg"] [Round "1.4"] [Annotator "TA"] [Result "1-0"] [Date "2019.11.07"] [WhiteElo "2759"] [BlackElo "2748"] [PlyCount "101"] 1. Nf3 {} Nf6 2. g3 c5 3. Bg2 Nc6 4. 0-0 e5 5. d3 d5 6. e4 d4 7. a4 Bd6 {A08: King's Indian Attack} 8. Na3 h6 (8... Be6 9. Ng5 Bg4 10. f3 Bh5 11. h4 h6 12. Nh3 Nd7 13. Nf2 g5 14. hxg5 hxg5 15. Bh3 {1-0 (48) Grischuk,A (2775)-Caruana,F (2819) Stavanger 2019} )9. Nh4 g6 {The position is equal. } ({Predecessor:} 9... Be6 10. Nf5 0-0 11. Nxd6 Qxd6 12. f4 Qe7 13. Bd2 Rad8 14. a5 Bd7 15. Qf3 Bg4 16. Qf2 Be6 17. Qe2 Rc8 18. Rae1 Ra8 19. b3 Rad8 20. h3 {1/2-1/2 (20) Tauscher,K (2444)-Leisebein,P (2434) Remote email 2013} )10. f4 exf4 11. gxf4 Ng4 12. Nf3 g5 13. e5 {} Be7 14. Qe2 gxf4 15. Bxf4 Rg8 16. Nc4 Be6 17. Kh1 Qd7 18. Nfd2 {Threatens to win with Nd6+.} 0-0-0 19. a5 Bd5 20. Ne4 (20. Bxd5 Qxd5+ 21. Qf3 )Qe6 {} 21. Rae1 Kb8 22. Ncd6 Ne3 23. Bxe3 dxe3 24. Qxe3 {} (24. c4 {keeps the balance.} Bxe4 25. Bxe4 Nxe5 26. Nf5 )Nxe5 ({Much worse is} 24... Bxd6 25. exd6 Nd4 26. Rf2 )(24... Rxg2 25. Kxg2 Nd4 )25. Nf5 Rg6 26. Re2 Ka8 ({Black should try} 26... Rdg8 )27. Neg3 (27. Nxe7 Qxe7 28. Nxc5 (28. Qxc5 Qe6 )Bxg2+ 29. Rxg2 )Bxg2+ 28. Rxg2 Bf8 29. a6 bxa6 30. Re1 f6 (30... Nc6 )31. Qe4+ Qd5 32. Rf2 Qb7 33. Qxb7+ Kxb7 34. Ne4 c4 35. d4 { White has strong compensation.} Nc6 (35... Nd7 )36. c3 Kc7 37. Ne3 a5 38. Ref1 a4 39. Nxc4 Be7 40. Ne3 a5 41. Ra1 a3 42. bxa3 a4 43. Rf5 Rb8 44. Nd5+ Kd7 45. Nb4 Nd8 (45... Nxb4 {is a better defense.} 46. cxb4 (46. axb4 Ra8 )Rc8 47. Rd5+ Ke8 )46. Ra5 Rg4 47. Re1 {White is clearly winning.} Rb6 (47... f5 48. Rxf5 Rg6 )48. Ra7+ Rb7 49. Rxa4 Ne6 50. Ra6 Rb5 {} 51. Ra7+ {Played: Ra6xe6} 1-0