Khanty Rd8: More mistakes!

[Event "KM FIDE GP 2015"] [Site "Khanty-Mansiysk RUS"] [Date "2015.05.22"] [Round "8"] [White "Grischuk, A."] [Black "Karjakin, Sergey"] [Result "1-0"] [ECO "D43"] [WhiteElo "2780"] [BlackElo "2753"] [Annotator "Ramirez Alvarez,Alejandro"] [PlyCount "79"] [EventDate "2015.05.13"] [SourceDate "2015.02.07"] 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c6 5. Bg5 h6 6. Bh4 dxc4 7. e4 g5 8. Bg3 b5 9. Be2 Bb7 10. e5 {This line is rather rare nowadays. It was somewhat popular in 2009-2013 but h4 remains the main line.} Nd5 11. O-O Nxc3 (11... Nd7 {was Morozevich-Caruana from 2013, whih was won by Black.}) 12. bxc3 c5 13. a4 a6 14. Qb1 {White will recover his pawn on the queenside, so Black initiates operations on the kingside to undermine White's center. A whole board approach! } g4 15. Nh4 cxd4 16. axb5 d3 17. Bxg4 {A very strange position. White has many pluses: better development, safer king. However Black's passed pawn on d3 cannot be underestimated. It won't queen soon, but it heavily restricts White's pieces.} a5 18. Bf3 Bxf3 19. Nxf3 Qd5 20. Ra4 {Attacking the base of a pawn chain is as old of a chess concept as it gets.} Nd7 21. Qa2 {Black doesn't want to give up his c4 pawn, but maybe he should have.} Nb6 (21... Qxb5 22. Rb1 Qd5 23. Nd2 Be7 24. Qxc4 {and even though White's position looks a little more pleasant, Black should have enough to keep equal chances.}) 22. Rxa5 Rxa5 23. Qxa5 Bc5 {Black's the own down the pawn now, but with compensation.} 24. Qa2 $1 {Bringing the queen back into the game is excellent.} O-O 25. Qd2 Kh7 26. Re1 Be7 27. Bf4 Rg8 {Black creates his own threats against the White king.} 28. Kh1 Bf8 29. Be3 $1 Nd7 30. Bd4 Qxb5 {Black recovered his pawn but White has managed to bring his bishop to a far more active square. The powerful passed pawn is compensated by the weakness of the Black king.} 31. Qf4 Bg7 $2 {This move is simply bad. The f7 pawn could be sacrificed but not like this.} (31... Qd5 32. Qxf7+ Rg7 33. Qf4 Bc5 {with still complicated play.} ) 32. Qxf7 Qd5 33. Nd2 $6 {The knight transfers at an inopportune moment.} Rf8 34. Qe7 Rf5 $6 (34... Nb8 $1 {Was the surprising and powerful move here. The point is that Nc6 and Nxd4 is a very real and hard to stop threat.}) 35. Re3 Rg5 36. Rg3 Nxe5 (36... Rxg3 37. hxg3 Nb8 $1 {was still the way to go.}) 37. Rxg5 hxg5 38. Nxc4 $5 {A brave decision in deep time trouble. Grischuk calculated this very well.} Kg6 39. Qe8+ Nf7 $4 (39... Kh6 40. Ne3 d2 $1 41. h3 $1 Qb3 42. Kh2 d1=Q 43. Nxd1 Qxd1 44. Qxe6+ {is probably a draw.}) 40. Qg8 $1 { Black is completely pinned down and cannot defend properly against Qxg7!} (40. Qg8 e5 41. Nxe5+ {and no piece can take the e5 pawn.}) 1-0

[Event "KM FIDE GP 2015"] [Site "Khanty-Mansiysk RUS"] [Date "2015.05.22"] [Round "8"] [White "Caruana, F."] [Black "Jakovenko, D."] [Result "0-1"] [ECO "C65"] [WhiteElo "2803"] [BlackElo "2738"] [Annotator "Ramirez Alvarez,Alejandro"] [SetUp "1"] [FEN "3qr2k/p5p1/1p2r1bp/2p5/4NR1P/1QbP2P1/PP3P2/4R1K1 w - - 0 35"] [PlyCount "26"] [EventDate "2015.05.13"] [SourceDate "2015.02.07"] 35. Qxc3 Qd5 {Still a complicated position. White is up a pawn but Black has all the activity. Chances should be around equal.} 36. Qb3 $2 {A big blunder!} (36. a3 $11) 36... c4 $1 {Excellent.} 37. Qc3 (37. dxc4 Qa5 $1 {And now White cannot defend the rook on e1 and the knight on e4 at the same time.}) (37. Qxc4 Qxc4 38. dxc4 Rxe4 $19) 37... cxd3 {White is simply lost. He cannot deal with all of the incoming threats.} 38. f3 Bxe4 39. fxe4 Rxe4 40. Rexe4 Rxe4 41. Rf2 Re3 42. Kh2 Qe4 {This swiftly finishes off the game.} 43. Qc8+ Kh7 44. Rf4 (44. Qf5+ Qxf5 45. Rxf5 Re2+ 46. Kh3 Rxb2 {is simply resignable.}) 44... Re2+ 45. Kh3 Qg2+ 46. Kg4 h5+ 47. Kxh5 Qxg3 {White is getting mated while Black isn't.} 0-1