Magnus Carlsen vs Sergey Karjakin (2012)

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Magnus Carlsen vs Sergey Karjakin
Grand Slam Chess Final (2012), Sao Paulo BRA, rd 3, Sep-26
Queen's Indian Defense: Fianchetto. Nimzowitsch Variation (E15) · 1/2-1/2

ANALYSIS [x]

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Sep-26-12		Strongest Force: This is dead

Sep-26-12		Marmot PFL: Like in the Anand game black is OK because his king is so active.

Sep-26-12		perfidious: Black has ideas such as ....Bxf2 and ....g4; these should be enough to hold.

Sep-26-12		Shams: Only 10s per move increment, that's pretty fast. That fact should favor Black here.

Sep-26-12		Shams: <perfidious> Well spotted.

Sep-26-12		Marmot PFL: <perfidious> 59...Bxf2 60 Kxf2 Kxe4 the passed pawns seem worth more than the piece tying down the king, while on the other side the BK easily copes with the knight.

Sep-26-12		MrSpock: 55. Na5? 55. Kg4!

Sep-26-12		Shams: Carlsen playing for a win in severe time trouble-- takes guts to put your knight on the 8th rank here.

Sep-26-12		Alex56171: You can follow the game also here: http://www.soloajedrez.com/torneos/...

Sep-26-12		perfidious: <Marmot> Carlsen can now play for Nb5 in some lines, then I don't see Karjakin having more than a draw-not that White can win either.

Sep-26-12		perfidious: So much for Nb5!

Sep-26-12		Shams: Yeah, looks like an easy draw now.

Sep-26-12		theodor: gu nat

Sep-26-12		Marmot PFL: <perfidious> I knew it wouldn't win for black, but meant he didn't have to sit for hours while Carlsen put his knight on every possible sq.

Sep-27-12		luzhin: Karjakin could have broken Carlsen's grip on the position with the startling 46...Rxb2+! The point is that after 47.Nxb2 fxe4 White's rook is completely trapped.

Sep-27-12		perfidious: <luzhin> Bizarre but true-a neat resource. White can't even recoup the lost pawns under favourable conditions because of his weaknesses at a3 and f2, combined with the poor placement of his pieces.

Sep-27-12		jancotianno: <Luzhin> 48. Rd7! forcing the black king to go black king to go back then 49. Ke3 and the position is hard for black to win although with really precise play it might be possible. Pity that Karjakin didn't go for that though.

Sep-27-12		Alesavio: Carsen was lucky not to lose another game in study-like manner: 46.Rd5?? is a blunder, and after 46...Rxb2+!! 47.Nxb2 fxe4 black is much better

Sep-27-12		fischer2009: <Alesavio> I believe you must be right.Astonishing tactics at such an innocous looking position for black.Jus beautiful.

Sep-27-12		perfidious: <Alesavio> Your idea was pointed out by <luzhin> above.

Sep-28-12		Alesavio: Right! I missed it...;-)

Sep-28-12		tamar: It is not so strange that both players, engrossed in the intricacies of the preparatory play before the bishop versus knight ending, should overlook a chance occurrence out of character with the rest of the game. More vexing for Magnus, I think, is that he failed to convert his edge on move 49. 49 Ke2 led to a position where his knight and King were separated, and he could not roam the board, but had to stick by the f2 pawn. 49 a4 might have accomplished that. Here is one line 49 a4 a6 50 Nd2 Kd6 51 Nb3 c4+ (from the line given at chessdom)) 52 Kxc4 Bb6 53 gxf4 Bxf2 54 fxe5 Kxe5 click for larger view Now chessdom's analysis gives a pawn race line with 55 Nc5 Bxh4 56 Nxa6 g5 with both sides queening and White having the edge but not clearly winning. Much better is 55 Nd2! Be3 (55...Bxh4 loses to the check on f3) 56 Kd3 Bc5 57 Nf3 Kf4 58 Ng5 Be7 59 Kc4 a5 60 Kd5 Kg4 61 e5 Kxh4 62 Nf3+ Kh5 63 Nd4 g5 64 Nc6 with a clear win for White, as the knight can actually get back to stop the g pawn.

Sep-29-12		tamar: Some other tries against 49 a4. It is significant to me that Houdini's best try at 26 ply is trying to preserve the status quo rather than trying to run the Kside pawns or free the bishop with c4+ tricks. 49 a4 Bc7 50 Nd2 Kd6 51 Kc4 Ba5 52 Nf3 a6 53 gxf4 exf4 54 e5+ Kc6 55 e6 Bc7 56 e7 Kd7 57 Kxc5 a5 Just by running the e pawn, White gains the King position to win. click for larger view 58 b3 Kxe7 59 Nd4 Kd7 60 Nc6 f3 (last try, if 61 Kb5 Bg3) 61 Nd4 Bd6+ 62 Kb5 Bb4 63 Nxf3 Kd6 64 Kc4 Ba3 65 Ne1! The knight continues to d3, and Black is helpless.

Sep-29-12		tamar: Judging by the game, Karjakin would have tried to get in ...g5 after 49 a4 It is more active than ...Bc7, and gets the pawn race going. I found this variation most interesting. 49 a4 g5 50 hxg5 Bxg5 51 Na5 Magnus touches on this possibility in the game, but to win this knight foray has to alternate with a King march. 51...fxg3 52 fxg3 Bc1 53 b3 Kd6 54 Kc4 Be3 55 Kb5 Bf2 56 Nc4+ Kc7 57 g4 Bd4 58 Ka6 Kb8 59 Nd6 g6 60 Nf7 Kc8 61 Nh8 click for larger view Pity this did not occur over the board.

Oct-04-12		zakkzheng: On the USCF website, they gave the position on move 46. Caruna was looking at this postion with a queer face. After the game, he explained that Rxb2!!, and after Nxb2 and fxe4, whites rook is trapped and karjakin with at least have a pawn in lead. So is Carlsen worse than Caruna? Well, Caruna was having a really good tournament. And he acually is.

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