csmath: 12. ... Rb8!?
Kramnik is a master opening player with deep knowledge of opening variations. This is shown here where he accepts Ipatov into Torre Attack known for good black results. Moreover this setup is in the venue of aggressive Kramnik's game as he plays Pirc and Queen Pawn often. Black has all the countergame he can handle. This is truly excellent for aggressive black players.
[This move is hard to explain. Obviously black will not allow bishop's retreat as opening of h-file is not dangerous to him in short run since his countergame is faster.]
[17. ...c4!, 18. Nc6 Qf7, 19. Be2 Rb6, 20. Nf6 with Qc7 following to trap the knight looks like a better idea.]
[White is simply too slow. I am not attracted to a temporary pawn sacrifice 18. c4 either: 18. ...cxd4
19. exd4 Bxd4
20. cxb5 Bg7
21. Nc6 Qf6
looks equally bad for white.]
[18. ...c4 looks stronger, again with motives to trap the knight on a5.]
[Bad move. What follows is rendering white knights ineffective.
19. dxc5 Nxc5
20. Ndb3 Nxd3
21. Rxd3 Qc7
does not look that bad for white although I would prefer to be black here as well.]
and now you might think that Kramnik switched to positional approach closing the position with trapped knight on a5 and ineffective minor pieces on d2 and e2 while white rooks are shooting on empty. Black pieces are not that effective either so this could have looked like a possible draw.
[Kramnik has a different view and he is not ready for a draw but rather for a piece sacrifice. This is indeed a brilliant positional sacrifice.]
33. Kd2 Bh6, 34. Kc1 Rd7, 35. Qc2 Re6
is not attractive to white either. White rooks and knight on a5 are out of play and black has full compensation for piece. White might have to take a pawn on h5 to release his rooks. I am not sure this is good enough either to save the game.]
Amazing as it might be, white is now lost as black can now mow down white pawns at will while moving his pawns forward!
Spectacular sacrifice of minor piece, completely sound and decisive. Brilliant game by Kramnik and one of the best attacking games of FWTC.