[Event "Grand Prix Hamburg 2019"] [White "Grischuk, Alexander"] [Black "Duda, Jan-Krzysztof"] [Site "Hamburg"] [Round "4.1"] [Annotator ""] [Result "1/2-1/2"] [Date "2019.11.15"] [WhiteElo "2759"] [BlackElo "2734"] [PlyCount "92"] 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. b3 Bb4+ 6. Bd2 Be7 7. Bg2 d5 8. cxd5 exd5 9. 0-0 0-0 10. Nc3 Re8 11. Ne5 { E15: Queen's Indian: 4 g3 sidelines, 4 g3 Ba6 and 4 g3 Bb7 early deviations} (11. a3 Nbd7 12. b4 Bb7 13. Qb3 Bd6 14. Bg5 h6 15. Bxf6 Nxf6 16. e3 c6 17. Rfc1 Qe7 18. Nd2 a6 {½-½ (46) Karjakin,S (2748)-Harikrishna,P (2734) Yekaterinburg 2019} )Bb7 12. Rc1 {Nbd} Nbd7 13. Rc2 Bf8 14. Bf4 c5 15. Nxd7 ({Predecessor:} 15. Nc4 Re6 16. Nb5 {1-0 (68) Kolmagorov,A (2180)-Inozemtsev,S (2310) Sochi 2019} )Qxd7 16. dxc5 bxc5 17. Bg5 d4 18. Bxb7 Qxb7 19. Bxf6 gxf6 20. Na4 Re5 21. Nb2 {Rae} Rae8 22. Nc4 Re4 23. e3 f5 24. Qh5 Qd7 25. Rd2 Bg7 26. Rd3 Qe6 27. exd4 {cxd} cxd4 28. Rf3 Re2 29. Rxf5 ({ Better is} 29. a4 )Rxa2 30. Rd5 {Qg} Qg6 31. Qf3 Ra6 32. Rd7 h5 33. h4 Rf6 34. Qd5 Re2 {} (34... Rf5 35. Qb7 Re2 )35. Qg5 {Qxg} ({ Resist} 35. Rxa7 Rf5 )(35. Ne5 Qe4 36. Qxe4 Rxe4 37. Nd3 )Qxg5 36. hxg5 Rf5 37. f4 {Rb} Rb5 38. Rf3 a5 39. Ra7 Rc2 40. Rxa5 Rb8 41. Kf1 Rc3 42. Rxc3 dxc3 43. Ne3 Rxb3 44. Ke2 Bd4 45. Ra8+ Kh7 46. Rc8 Bxe3 1/2-1/2