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| May-14-13 | | ceebo: <tamar: I haven't been able to find a win with the sequence 62...Bg1 63 Ne3 Ra2+ 64 Kf3 Kd4 65 Nxc4 Kd5...> How about 66.Rc8!? here. The a-pawn is a goner but white keeps the knight on the board and can attempt to win the h-pawn later. It's far from a certain win though. |
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| May-14-13 | | ceebo: With my previous comment in mind maybe 62...Ra5 is better for black. I can't find anything better than 62...Ra5 63.Nd6 Ra2+ 64.Kf3 Kd3 65.Nxc4 Rf2+ 66.Kg4 Ke4 67.Nd6+ Kd5 68.Rc8 Kxd6 69.Rd8+ Ke7 70.Rxd4 Ra2 71.Kxh4 Rxa6 |
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| May-14-13 | | csmath: <Looks like Carlsen missed here a tactical opportunity to win a pawn and gain an early advantage: 22.Qb5 Bb6> I doubt he missed anything. 22. ... Bb6 is not given/forced and there are variations here that give black a passer on d-file which is not something Magnus wanted to handle. 22. e4 prevents that and gives him safe ending in which black can do pretty much nothing while white continues to play for a win. I am guessing this was his exact intention. |
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| May-14-13 | | Eyal: Position after 37…Kd5:
click for larger viewThe commentator on chesspro, Sergey Zagrebelny, called this position a kind of "zugzwang-light" for Black (http://www.google.com/translate?hl=...). Black goes on to make a series of pawn moves, and after running out of them has to move either king or rook and thereby make some sort of concession – since the white knight isn't attacked twice anymore, either the white king or rook are freed for action (the bishop can't move at all, since Bb8 allows a knight fork on b6). It's not losing yet, but it makes Black's position awkward. That's why Carlsen suggested at the press conference, instead of the natural-looking Ke6-d5 maneuver, an alternative deployment of Black's pieces as a better drawing method: 36...Bb8 37.a3 Bc7 38.Kd3 Kd7 – an important point, I suppose, being that if White tries to drive away the rook, Black's king is just in time to defend it: 39.Kc3 Kc6 40.Kb3 Kb5 (with the bishop on c7 preventing an annoying knight check on d6). |
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| May-14-13 | | csmath: Although I wonder what would be the game had the black played 21.... d4 which seems as a fixed weakness but not so easy to handle. |
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| May-14-13 | | Eyal: <csmath: <Looks like Carlsen missed here a tactical opportunity to win a pawn and gain an early advantage: 22.Qb5 Bb6> I doubt he missed anything. 22. ... Bb6 is not given/forced and there are variations here that give black a passer on d-file which is not something Magnus wanted to handle. 22. e4 prevents that and gives him safe ending in which black can do pretty much nothing while white continues to play for a win. I am guessing this was his exact intention.> Bb6 is not a given, but it's a critical line since otherwise it's clear that Black is losing a pawn (though indeed he has some compensation). I think Carlsen missed it – i.e., the following knight maneuver – because he didn't mention this possibility at all, just said that he didn't see anything except for e4. But it's true that what he played is more consistent with his style in any case. |
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| May-14-13 | | csmath: Looking at the whole game, Radjabov played good and natural moves. Unlike London where he did some really bad decisions the only time he can be criticized here is for 57. ... Be5 but that is in hindsight. Magnus' proposal 57. ... Ra2 is more reasonable but Be5 is not ouright blunder by any standard. Yet it seems that has decided game. The only move I see as nonsense is 62. ... Rh1 but by that move it is already (probably) too late.
After 62. ... Rh1 the game is over. |
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| May-14-13 | | csmath: This is very much like Karpov in his heyday. It takes very little to lose game against Magnus. |
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| May-14-13 | | Eyal: One of the striking things that become clear when looking at the game in detail is the amount of short-term tactics that had to be constantly calculated in order to maintain White's advantage; for example - after 55.Rg7 Black can't take the pawn with 55...Rxa6 because of 56.Rg6+ and any king move would lose to a knight check, winning the rook or the bishop: 56...Kc7/e7 57.Nd5+; 56...Ke5 57.Nc4+. |
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May-14-13
 | | keypusher: <Eyal: One of the striking things that become clear when looking at the game in detail is the amount of short-term tactics that had to be constantly calculated in order to maintain White's advantage; for example - after 55.Rg7 Black can't take the pawn with 55...Rxa6 because of 56.Rg6+ and any king move would lose to a knight check, winning the rook or the bishop: 56...Kc7/e7 57.Nd5+; 56...Ke5 57.Nc4+.> Yes, that was one of the few things I noticed the first time I played through! The king has only three dark squares and a fork waiting on each one. Very pretty. |
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| May-14-13 | | csmath: This is always the case when knight is in the central part of the board. :-) |
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| May-14-13 | | Everett: Great economy of forces by Carlsen, particularly the blockade of blacks c-pawn. |
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| May-14-13 | | WiseWizard: What skills do these endgames require that Carlsen clearly has more of than anyone else? |
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May-14-13
 | | tamar: <ceebo> Kinghunt showed a diagram position which is a win for White without an a pawn providing the Black King can be kept out of the Kside. Not sure it can be done but your suggestion after 62...Bg1 63 Ne3 Ra2+ 64 Kf3 Kd4 65 Nxc4 Kd5 of 66 Rc8 is better than Houdini's walk into a dead draw. For example, 66...Rxa6 67 Ne5 with the idea of Re8 and/or Nf7 might keep the King out. This for example is a win for White 
click for larger view |
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| May-15-13 | | Sokrates: It's fun to view the so-called press conference (thanks for the link, Eyal). I can't help thinking how hopeless chess-folks appear on TV. Two middle-aged guys mumbling and small-talking, while the winner isn't greated with a congratulations, but with "another long day in the office". But they are kind and gentle folks trying to get something out of a TV-setting seemingly created by accountants or engineers. Did you see Carlsen passing the camera on his way to the table? I couldn't help laughing. But we did see Carlsen's analysis of the game, which compensated for everything. A very interesting view in his thinking. |
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| May-15-13 | | Ulhumbrus: Carlsen said that Black could have played 33...Rxa2 instead of 33..Rxa5 and this alternative pins the knight |
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| May-15-13 | | SirRuthless: Radjabov got low on time and couldn't produce an adequate defense. He loses like this on a regular basis... Sad. Good for the event though that Magnus is finally winning some games. Beating the bottom tablers and draw the stronger players is a good strategy. If Magnus sticks to this he will be 2900 before too long. |
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May-15-13
| | keypusher: <SirRuthless: Beating the bottom tablers and draw the stronger players is a good strategy.> Oh God, not this horseshit again. Explain to me how Karjakin was a <bottom tabler>? And how Wang Hao, whom Nakamura beat, wasn't? |
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| May-15-13 | | ceebo: Actually after 62...Ra5 63.Nd6 Ra2+ 64.Kf3 Kd3 65.Nxc4 Rf2+ 66.Kg4 Ke4 I found that 67.Re6+ keeps the game alive because of 67...Kd5 68.a7 Bxa7 69.Re7 and the knight cannot be traded. |
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May-15-13
| | keypusher: <SirRuthless> <Beating the bottom tablers and draw the stronger players is a good strategy.> Evidently Karjakin is employing the same strategy, since he's hammering Nakamura. |
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| May-15-13 | | Everett: <Eyal: One of the striking things that become clear when looking at the game in detail is the amount of short-term tactics that had to be constantly calculated in order to maintain White's advantage> Like Kramnik's description of Karpov; incredible accuracy in the calculation and assessment of short lines. |
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May-15-13
| | tamar: <ceebo: Actually after 62...Ra5 63.Nd6 Ra2+ 64.Kf3 Kd3 65.Nxc4 Rf2+ 66.Kg4 Ke4 I found that 67.Re6+ keeps the game alive because of 67...Kd5 68.a7 Bxa7 69.Re7 and the knight cannot be traded.> I felt some deja vue after your variation there. Going a couple more moves, White can only maintain the advantage there after 69...Bb8 by 70 Nb6+ Kd6 71 Nc8+ Kc6 when you have this familiar looking position 
click for larger viewBack at move 55 Magnus faced a position he could have gone into with 55 Nc8+ 
click for larger view and commented in the postmortem that he didn't want to be tricked into that move because he didn't think the knight could get out without being traded. He played the subtle 55 Rg7 with its own bag of tricks. In the first diagram, it might be possible to get the knight out, but it limits White's winning chances even further. |
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May-15-13
| | tamar: After I posted that, I wondered if the same mechanism existed to avoid going to c8 with the knight, and indeed it does. White can play 71 Rh7 and again avoid the "trap" of 71 Nc8+ The repeating pattern would have been fantastic to see. |
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| May-15-13 | | ceebo: I had looked at 71.Re1 in that position. There are so many lines to look at but let me throw out just one: 71.Re1 Bc7 72.Nc4+ Kd5 73.Ne3+ Kd4 74.Nf5+ Kd5 75.Ne7+ Kd6 76.Ng6 Rg2+ 77.Kf5 Rg3 and after the passive looking 78.Rh1 white looks good according to my computer. |
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| May-15-13 | | ceebo: Looking at this again after 62...Ra5 63.Nd6 Ra2+ 64.Kf3 Kd3 65.Nxc4 Rf2+ 66.Kg4 Ke4 67.Re6+ Kd5 68.a7 Bxa7 69.Re7 Bb8 70.Nb6 I think that instead 70...Kd4 looks like a draw e.g. 70..Kd4 71.f5 Rf4+ 72.Kg5 Rf3 |
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