[Event "FIDE Chesscom Grand Swiss 2021"] [White "Yu,Yangyi"] [Black "Vachier Lagrave,Maxime"] [Site "Riga"] [Round "11.3"] [Annotator "TA"] [Result "1/2-1/2"] [Date "2021.11.07"] [WhiteElo "2704"] [BlackElo "2763"] [PlyCount "78"] 1. e4 {} c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h3 e5 7. Nb3 Be6 {B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5.} 8. Be3 Be7 9. f4 exf4 10. Bxf4 Nc6 11. Qe2 Nd7 12. 0-0-0 Nce5 13. Kb1 Rc8 14. Qe3 0-0 15. g4 Re8 16. Nd4 Qa5 17. a3 b5 18. Nf5 {[#]} b4 $146 ({Predecessor:} 18... Bxf5 19. gxf5 Nf6 20. Nd5 Nxd5 21. Rxd5 Bf6 22. Rxd6 Qc7 23. Rd2 Qb7 24. Bxe5 Rxe5 {1/2-1/2 (49) Straka,Z (2576)-Daubenfeld,N (2533) ICCF email 2017} )19. Nxe7+ Rxe7 20. axb4 Qxb4 {[#] aiming for ...Rb8.} 21. Qd4 $1 {} Qa5 22. Qxd6 Ree8 23. Nd5 Qa4 24. Rh2 Bxd5 25. Qxd5 Nf6 {[#]} 26. Qb3 {} Qxe4 27. Bxe5 (27. Rf2 $16 )Qxe5 $14 28. Re2 Ne4 $1 29. Qd5 (29. Rd5 $5 {} Qe6 30. Rd3 $11 )Qf4 {The position is equal.} 30. Ka1 g6 {Hoping for ...Re5.} 31. Rde1 {} Rc5 32. Qxc5 Nxc5 33. Rxe8+ Kg7 34. R8e3 (34. Kb1 {with more complications.} Qb4 35. b3 Na4 36. Bxa6 Nc3+ 37. Kb2 )Qd4 35. Kb1 Na4 {} 36. Rb3 Nc5 37. Ra3 Na4 {} 38. Rb3 Nc5 39. Ra3 Na4 { Weighted Error Value: White=0.07/Black=0.06} 1/2-1/2