[Event "RB-00422 "] [White "Obukhov,Gennady Nikolaevich"] [Black "Manchenko,Ivan Grigorievich"] [Site ""] [Round ""] [Annotator "Havanur,Nagesh"] [Result "1/2-1/2"] [Date "2024.02.12"] [WhiteElo "1905"] [BlackElo "1930"] [PlyCount "51"] 1. d4 Nf6 2. c4 g6 3. Nc3 d5 {The Grünfeld Defence.} 4. Nf3 Bg7 5. h4 $5 { A trendy offbeat line.White targets g6 and intends to play cxd5 followed by h4-h5 with a kingside attack.} dxc4 $1 {The right response. White's kingside pawn advance is met with a counterstrike in the centre.} 6. e4 (6. h5 Nxh5 7. e4 c5 8. d5 Qa5 9. Bd2 b5 10. e5 O-O $15 {Black s two pawns up. However, White's centre pawns threatem to advance. So Black needs to neutralise the same.} )c5 7. d5 (7. h5 Nxh5 8. d5 Qa5 9. Bd2 b5 10. e5 O-O $15 { transposes to the line in the previous note.} )O-O 8. Bxc4 ({Sergey Grigoriants analyses the well-known line,} 8. h5 Nxh5 $1 9. Bxc4 Bg4 10. Rh4 Bxf3 11. Qxf3 Nd7 $1 12. Qh3 Bf6 $1 13. Rxh5 gxh5 14. Bb5 Nb6 15. Bf4 Bg7 16. Qxh5 f5 $44 )b5 9. Bxb5 Nxe4 10. Nxe4 Qa5+ 11. Nc3 Bxc3+ 12. bxc3 Qxb5 13. h5 Qc4 14. hxg6 fxg6 15. Rh4 Qxc3+ 16. Bd2 Qd3 17. Bh6 Qxd1+ 18. Rxd1 Rf5 19. d6 ({He also annotates in depth,} 19. Re4 Nd7 20. Rxe7 Rh5 21. Be3 Nf6 22. d6 Bg4 23. Rd3 Nd5 24. Re5 Nb4 25. Rd2 Bxf3 26. Rxh5 Bxh5 27. d7 Nc6 28. f3 $1 g5 29. Bxg5 Bf7 30. a3 Nd8 31. Re2 Nc6 32. Rd2 Nd8 33. Re2 Nc6 34. Rd2 Nd8 { 1/2 -1/2, Fedoseev-Chigaev, 73rd Russian Championship, 2020.} )e5 $1 { This move is also recommended by Sergey Grogoriants.} 20. Ng5 Nd7 21. Rb1 Rb8 22. Rxb8 Nxb8 23. Rc4 Nd7 24. Ne4 Rh5 25. Be3 Kf7 26. Bxc5 1/2-1/2