Just wake up to watch the round 6 live online in the Internet Chess Club (ICC). I'll do some annotation .
GM Levon Aronian (2739) - GM Peter Leko (2753) [A33]
i don't know whether this move is theory or not but it seems that white is willing to permit black to check on f2 with his queen! 9... g5 why not 9...Qxf2+ ? let see what Fritz will do after 10.Kd2...eeemmm black have to eye c7 square because white is threatening Nc7+ forking the rook on a8 and black king ! furthermore, white also threatening h3, and the knight on e5 be en prise! 10...Qc5 11.Ne4 Qc6 and white queen will have a hard time after move like 122. Bg2 threatening 13. Ned6+ and take the queen on c6! 10.Bxe5 Nxe5 11.0–0–0 a6 12.e3 Rb8 13.Nd4 Qc7 14.Be2 Be7 15.Kb1 Nc6 16.Rc1 Qe5 17.Rhd1 h5 18.Ka1 g4 19.Bf1 f5 20.Bg2 Kf7 21.h3 Bf6 22.Qc2 Ne7 23.Nce2 b5 24.cxb5 axb5 25.Nf4 d5 26.Qc5 Rb7 27.Qb4 Bd7 28.Nd3 Qb8 29.Nc5 Qd6 30.Qa5 Rc7 31.Nxd7 Rxd7 32.hxg4 hxg4 33.Bf1 b4 34.Nb5 Qe5 35.Qxb4 Ra8 36.Rd2 Qb8 37.Kb1 Be5 38.Rdc2 Rda7 39.a3 Ra4 40.Qb3 Qb6 41.Rc5 R4a5 42.Be2 Rb8 43.Qb4 Kf6 44.R1c2 Rh8 45.e4 fxe4 46.Bxg4 Rha8 47.Rc1 Ra4 48.Qd2 Rxa3 49.Nxa3 Rxa3 50.Rc6 1/2-1/2
GM_Topalov (2780) - *GM_Anand (2799)
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Nf3 4.Nf3 is known as the Kasparov Variation, since Garry Kasparov used it to great effect against Anatoly Karpov in their 1985 World Championship match. Kasparov played 4.Nf3 twice, winning both times.4...c5 4...c5 is the most common move that stays within Nimzo-Indian territory. 4...d5 transposes to the Ragozin Defence of the Queen's Gambit Declined and 4...b6 5.Bg5 Bb7 transposes to the Nimzo/Queen's Indian hybrid line5.g3 b6 6.Bg2 Bb7 7.0–0 cxd4 8.Qxd4 Nc6 9.Qd3 0–0 10.b3 d5 11.cxd5 Ne7 12.Bd2 Rc8 13.e4 Bxc3 14.Bxc3 Nxe4 15.Bxg7 Kxg7 16.Qxe4 Bxd5 17.Qg4+ Ng6 18.h4 Bxf3 19.Qxf3 Qf6 20.Qb7 Qe7 21.Qe4 Qc5 22.Rad1 Rfd8 23.Rfe1 Rxd1 24.Rxd1 Rc7 25.Bf3 Qe5 26.Qb4 Qc3 27.Qg4 f5
28.Qh5 ICC commentator condemn this move at first suggesting 28.Qd4+ but after 28...Qxd4 29.Rxd4 Kf6 Black looks like he is more comfortable because of his active king, knight and pawn center! 28...Qf6 29.Bg2 e5 28...Qf6 29.Bg2 e5 30.Bh3 Rf7 31.Qe2 e4 32.Rd5 f4 33.Rf5 Qa1+ 34.Kh2 fxg3+ 35.fxg3 Rxf5 36.Bxf5 Nxh4 37.Bxe4 37.gxh4? Qe5+ 38.Kg2 Qxf5 37...Qe5 38.Qg4+ Ng6 39.Bxg6 hxg6 40.Qd7+ Kh6 41.Qxa7 Qe2+ 42.Kh3 ½–½
GM_Radjabov (2735) - *GM_Carlsen (2733)
1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.d3 Bc5 5.c3 0–0 6.0–0 d5 7.Nbd2 dxe4 8.Nxe4 Nxe4 9.dxe4 Qf6 10.Qe2 Bg4 11.h3 Bxf3 12.Qxf3 Qxf3 13.gxf3 Ne7 14.f4 c6 15.Bc4 exf4 16.Bxf4 Ng6 17.Bg3 Rfe8 18.Rfe1 Rad8 19.Rad1 Rxd1 20.Rxd1 Rxe4 21.Rd8+ Nf8 22.Bd3 Re1+ 23.Kg2 a5 24.Ra8 Rd1 25.Bc4 Bb6 26.Rb8 Rd7 27.Ba6 ! may be Carlsen didn't expected this move by Radjabov. Black queenside pawn will be seriously damage!
27... bxa6 28.Rxb6 f6 29.Rxa6 Rd2 30.b4 axb4 31.cxb4 Rb2 32.Bd6 Ne6 33.a4 Rc2 34.a5 Kf7 35.Bc5 Nf4+ 35...Nxc5 36.Rxc6 Rb2 37.bxc5 Ra2 38.a6 Ke8 39.Rd6 Ra5 40.Rb6 Rxc5 41.Rb8+ Kf7 42.a7 36.Kf3 Nd5 37.Rb6 !? GM Hikaru Nakamura on ICC said that: Radjabov better be careful and not get too cute but Fritz quite like it . The point is 37... Nxb6?? Would be a serious blunder after 38.axb6 Rd2 39.b7 Rd8 40.Bd6 ! 37... Rc4 38.Rb7+ Kg6 39.a6 Rc3+ 40.Kg2 Nf4+ 41.Kg1 Nxh3+ 42.Kh2 Nf4 43.Be3 1-0
source : wikipedia
photo from chessbase.com