1.e4 c6 Magnus Carlsen can play almost any opening. For instance in their last classical game in 2010 the Norwegian surprised the Russian GM with the French Defence (which Carlsen never played before).
2.d4 d5 3.e5 Bf5 4.Nf3 e6 5.Be2 Ne7 6.0-0 c5 7.c4 In the Advanced Variation of the Caro-Kann both sides actively fight for the center right from the early moves.
7...Nbc6 8.dxc5 [8.Na3 was played by Karjakin in a blitz game before.]
8...d4 9.Bd3 Bxd3 10.Qxd3 Ng6 11.Qe4 Bxc5
12.a3 Possibly Karjakin mixed up something, as he admitted after the game that the immediate 12.Nbd2 is better. This is actually the move played recently by Karjakin's second in Romania Alexander Motylev: [12.Nbd2 Qc7 (preferable is 12...0-0 13.Nb3 Qb6 as played by Karpov in 2002.) 13.Nb3 Be7 14.Re1 Rd8 15.Bd2 0-0 16.h4 h5 17.Rad1 a6 18.Nc1 b5 19.cxb5 axb5 20.Nd3 Rd5 21.Rc1 Rc8 22.g4 hxg4 23.Qxg4 Kh8 24.Kh1 Qb7 25.Rg1 Bf8 26.Qh5+ Kg8 27.Ng5 Be7 28.Qh7+ Kf8 29.Nxe6+ Ke8 30.Nxg7+ Kd7 31.e6+ Kd6 32.exf7 Nce5 33.Rxg6+ 1-0 Motylev,A (2677)-Maletin,P (2584)/Olginka 2011]
13...Bb6! Very strong, pointing out the vulnerability of pawn e5 (the idea is to play Bc7 sometimes). Now due to the inclusion of the moves a3/a5 White does not have time for 13.Nb3, which is answered by 13...a4. [13...Qb6 is also strong, highlighting another drawback of the move 12.a3 - the weakness of square b3: White is unable to place the knight on b3 now.]
14.Rb1 a4 [After 14...Bc7 15.Nb3 White exchanges the pan on e5 for the pawn d4.]
15.b4 axb3 16.Rxb3 [16.Nxb3 Ra4! ]
16...0-0 17.c5 [17.h4!? ]
17...Bxc5 18.Rxb7 Qd5! 19.Qxd5 exd5
20.Nb3! [Karjakin missed at the beginning that after 20.Rb5 Ra5 21.Rxa5 Nxa5 22.Bb2 Black has a very strong move 22...Nf4 and White's position becomes highly unpleasant.]
20...Bxa3 21.Bxa3 Rxa3 22.Nbxd4 Ngxe5 [22...Nxd4 23.Nxd4 Nxe5 24.Rb5 Rd8 25.f4 Ng6 26.Nc6 Rc8 27.f5 Rxc6 28.fxg6 hxg6 29.Rxd5 Ra2 30.Rg5 is also a draw.]
23.Nxc6 Nxc6 24.Rc7 Black is a pawn up, but the rook on c7 is very active and Carlsen's knight doesn't have a stable square. All this means that Black cannot convert his extra pawn.
24...Rc3 25.Re1! Threatening 26.Ne5. [After 25.Ne5 Black has 25...Nd4! 26.Rxc3 Ne2+ 27.Kh1 Nxc3 and after the exchange of White's active rook Black gets real chances to win.]
25...Rc4 26.Rd7 Nb4 27.g3 Black is not able to improve the position.
27...h6 28.Ree7 Nc6 29.Re1 Rc5 30.Kg2 Nb4 31.Ree7 Nc6 32.Re1 Rb8 33.h4 Rc8 34.Rb1 d4 35.Nxd4 1/2-1/2