from ChessBase.com....
(1) Carlsen,Magnus (2870) - Anand,Viswanathan (2775) [D31] FWCM 2013 Chennai (5), 15.11.2013 [Josh Friedel] 1.c4 Carlsen decides that he's had enough of 1. Nf3. 1...e6 2.d4 d5 Vishy opts for the Queen's Gambit Declined, with which he won the decisive last game in his match against Topalov. 3.Nc3 c6 Psyche! Now it is a triangle Semi Slav. 4.e4 dxe4 5.Nxe4 Bb4+ Is Magnus going to take Vishy on in the main lines of the Marshall Gambit? 6.Nc3 Nope. This is a quieter option for White, but it has plenty of sting. 6...c5 7.a3 Ba5 8.Nf3 Nf6 9.Be3 Nc6 [9...Ne4 is the main alternative, but now after 10.Qc2 Nxc3 11.bxc3 cxd4 12.Bxd4 I think White's piece activity and development more than compensate for the doubled c pawns.] 10.Qd3 Carlsen shows his homework. This move might look a bit funny but it has some logic to it. First off, he prepares to take back on c3 with the queen. Second, Taking on c5 is more favorable now, since Black will have to take on d3 before taking on c3, developing White's f1 bishop and taking the queens off will surely favor Carlsen. Finally, White has the options of Rd1 and 0–0–0. [10.dxc5 Bxc3+ 11.bxc3 Qa5 This is Black's usual idea for counterplay in such positions. 12.Qc2 Ng4 13.Qc1 0–0 14.Be2 Nxe3 15.Qxe3 Ne7 16.0–0 Nf5 17.Qe4 Qxc5 18.Rfd1 f6 19.Bd3 g6 20.h4 Ng7 21.Qd4 Qxd4 22.cxd4 Bd7 23.Be4 Rab8 24.Rab1 Rfc8 25.Bxb7 Rxc4 26.d5 Rc7 27.dxe6 Bxe6 28.Be4 Rxb1 29.Rxb1 Nf5 30.Rb8+ Kf7 31.a4 Nd6 32.Bd3 Rc8 33.Rb4 Rc3 34.Be2 Rb3 35.Rf4 Ke7 36.Nd4 Rb1+ 37.Kh2 Bd7 38.Nc2 a5 39.Bf3 Nf5 40.h5 g5 41.Rc4 Rc1 1/2–1/2 (41) Polgar,Z (2560)-Portisch,L (2580) Budapest 1993] 10...cxd4 11.Nxd4 Ng4 It is worth losing time to go after the bishop on e3. [11...Ne5 is an interesting alternative.] 12.0–0–0 Nxe3 13.fxe3 [13.Qxe3 Bb6 is not to be recommended.] 13...Bc7 In my opinion, this move is just a tad imprecise. [13...0–0 14.Nxc6 bxc6 15.Qxd8 Bxd8 looks similar, but Black has gained a tempo to get his king out of the center, which I think is a huge plus. Now if 16.Be2 as he played in the game, Black is in time. 16...Bb6 17.Rd3 e5! 18.Bf3 Bf5 and Black has sufficient counterplay.] 14.Nxc6 bxc6 15.Qxd8+ Bxd8 Black has the two bishops, but White's development is superior and the c6 pawn will cause major problems. 16.Be2 Ke7 [16...Bb6 still looks like a better move. 17.Rd3 (17.Bf3 Bxe3+ 18.Kb1 looks like a lot of compensation, but at least Black has a pawn for his troubles.) 17...Ke7 18.Bf3 Ba6! followed by Rad8 with counterplay.] 17.Bf3 Bd7 18.Ne4 It is clear something has gone wrong for Black. For the first time in the match, White has the advantage! 18...Bb6 Vishy cashes in his two bishops for an opportunity to activate his rook on the b-file. Doesn't make sense? You'll see in a few moves. [18...Bc7 19.Nc5 Be8 looks depressing, but Black is still solid and the bishops may create counterplay eventually.] 19.c5 f5 20.cxb6 fxe4 21.b7! Of course White doesn't allow Black to fix his pawn structure. 21...Rab8 22.Bxe4 Rxb7 White's advantage may not look like much, but the weak c-pawn isn't going to be fixed anytime soon, so Black at least will have to suffer awhile here. This is exactly the type of position Carlsen wants. That being said, it is well in the drawing zone, and some real errors will have to be made for White to win. 23.Rhf1 Rb5 24.Rf4 [24.Rd4 I prefer this rook lift, as now e5 can be met by Rc4.] 24...g5 [24...e5 25.Rf2 Be6 and Black has untangled a bit. If 26.Bxc6?? Rc5+ 27.Rc2 Rxc2+ 28.Kxc2 Rc8 Black wins the bishop.] 25.Rf3 h5 This expansion doesn't do a whole lot. 26.Rdf1 Be8 27.Bc2 Rc5 28.Rf6! This move paralyzes the e8 bishop and h8 rook in one go. 28...h4 29.e4 a5 30.Kd2 Rb5 31.b3 Bh5 32.Kc3 Rc5+ 33.Kb2 Rd8 34.R1f2 Rd4 Vishy found activity like he often does, but there are still challenges to be solved. Black has some potential weaknesses, and if his activity fizzles he'll have real problems. 35.Rh6 [35.Bb1 is an attempt to be clever, though after 35...Rd2+ 36.Rxd2 Kxf6 Black should have sufficient counterplay.] 35...Bd1 36.Bb1 It is important that White keep the bishops on the board, as with just rooks the advantage would completely disappear. 36...Rb5 37.Kc3 c5 38.Rb2 e5 39.Rg6 With the rook on the 5th rank cut off, Magnus goes after Vishy's weakened kingside. Even so, Black has a lot of counterplay. 39...a4 [39...g4 looks like the simpler path. 40.Bd3 (40.Rh6 a4! is far better than the game.) 40...Rxb3+ 41.Rxb3 Bxb3 42.Rxg4 c4 43.Be2 Kd6 44.Rxh4 Kc5 with excellent counterplay for the pawn.] 40.Rxg5 [40.bxa4 Rxb2 41.Kxb2 Bxa4 42.Rxg5 and White has won a pawn, but his bishop on b1 is really sad.] 40...Rxb3+ 41.Rxb3 Bxb3 42.Rxe5+ This is similar, but White wins the very important e5 pawn. 42...Kd6 43.Rh5 Rd1 44.e5+ Kd5 45.Bh7 Extremely precise play is required of Black now, and Vishy loses the thread. 45...Rc1+? Anand goes after the g-pawn, which isn't the correct approach. [45...Ra1 was necessary immediately, and now after 46.Bg8+ (46.Rxh4 Rxa3 is also drawn.) 46...Kc6 47.Bxb3 Rxa3 48.Rxh4 Rxb3+ 49.Kc2 (49.Kc4?? Rb4+ is not recommended.) 49...Ra3 and Black should draw comfortably due to superior king and pawns. Note that the e-pawn is a major weakness. A possible line would continue 50.Kb2 Rb3+ 51.Ka2 Re3 52.Rxa4 Re2+ 53.Kb3 Rxg2 54.h4 Kd5=] 46.Kb2 Rg1 47.Bg8+ Kc6 [47...Kd4 looks like a better attempt, but after 48.Rxh4+ Kd3 (48...Kxe5 49.Bxb3 axb3 50.g3 wins for White.) 49.Rg4 (49.Rh3+ Kd4 50.Bxb3 axb3 51.Rh4+ Kd3 with major counterplay.) 49...Bxg8 50.Rxg8 Re1 51.Rd8+ Kc4 52.Rd2 and White ought to win with the outside pasers now that Black's 2nd rank counterplay has stopped.] 48.Rh6+! Precise, as he doesn't want Black to have Kd5 after the bishop trade. 48...Kd7 [48...Kb5 49.Bxb3 axb3 50.Kxb3 c4+ 51.Kc3 is also lost.] 49.Bxb3 axb3 50.Kxb3 Rxg2 51.Rxh4 White's pawns are scattered, but he is up two of them and unlike in previous lines he has a good king! 51...Ke6 52.a4 The a-pawn will become a menace very quickly. 52...Kxe5 53.a5 Kd6 54.Rh7! One last accurate move, and now it is over. 54...Kd5 55.a6 c4+ 56.Kc3 Ra2 57.a7 Kc5 58.h4 and Black resigned since there is no defense to h5-h6-Rg7 and queening the pawn. Carlsen's advantage was microscopic for most of the game and Vishy was extremely close to a draw even towards the end, but one slip of 45... Rc1+ was enough to allow the world #1 to steal the point. 1–0
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