Wijk aan Zee 2012 - Page 7 - Chess and Board Game Strategy

Liquidation cant be that good for magnus.

Sure he has a bishop but those queenside pawns look ok on those squares and h1 is a long way away to defend b2.

He will need all his positional precision if too many pieces come off.

Also can someone explain thinking behind 27.h4

Quote

01-24-2012 , 12:26 PM

#152

Dorilla

enthusiast

Join Date: Jan 2012 Posts: 93

Quote:

Originally Posted by KyleJRM82

It's more up in the air at this point than I would have guessed.

Aronian has to find the very, very unintuitive 40. Qg3 here, throwing away a bishop for no immediate or obvious compensation. Otherwise, Houdini considers it within 0.33 and black can find some interesting counterplay that I can see.

What unintuitive move? There is not really much else to consider.

Quote

01-24-2012 , 12:54 PM

#153

KyleJRM82

old hand

Join Date: Dec 2007 Posts: 1,785

Qg3 leaves your bishop hanging, leaves the protected, passed, advanced pawns unimpeded, and cedes the immediate initiative. He had also missed a very similar move not long before.

Quote

01-24-2012 , 01:41 PM

#154

Dorilla

enthusiast

Join Date: Jan 2012 Posts: 93

Quote:

Originally Posted by KyleJRM82

Qg3 leaves your bishop hanging, leaves the protected, passed, advanced pawns unimpeded, and cedes the immediate initiative. He had also missed a very similar move not long before.

Yeah but you can not wait forever.

Quote

01-24-2012 , 02:01 PM

#155

KyleJRM82

old hand

Join Date: Dec 2007 Posts: 1,785

Okay. Switch unintuitive to "move I would not have considered."

Quote

01-24-2012 , 02:02 PM

#156

Dorilla

enthusiast

Join Date: Jan 2012 Posts: 93

Giri just blundered.

Quote

01-24-2012 , 02:06 PM

#157

KyleJRM82

old hand

Join Date: Dec 2007 Posts: 1,785

Giri-ivanchuk made a lot more sense after I realized I was looking at the board as if it were from black's perspective and not white's. I had some very interesting lines calculated out that they didn't seem to be playing and I didn't understand why for a few minutes.

Quote

01-24-2012 , 02:38 PM

#158

Noir_Desir

veteran

Join Date: Feb 2007 Posts: 2,333

Quote:

Originally Posted by Dorilla

Giri just blundered.

yes but it was far from obvious why the King being on b7 made such a big difference in the pawn ending (the point being that in some line e5-e6-e7-e8 forced black to take on e8 instead of on e7, making possible a7-a8=Q with check).

Quote

01-24-2012 , 03:09 PM

#159

Dorilla

enthusiast

Join Date: Jan 2012 Posts: 93

Quote:

Originally Posted by Noir_Desir

Ivanchuk just took a pawn on h5 so there never was any previous pawn endgame possibility. Also houdini shows Rc1 with the same score. Prob some other rook moves work too. But ok not the worst blunder in the world.

Quote

01-24-2012 , 03:57 PM

#160

Do it Right

Pooh-Bah

Join Date: Jul 2010 Posts: 3,890

What happened in the Carlsen game? Just played through it and 20. Rc4 stupefied me since 20. Rxc5 seemed so obvious. The computer agrees. I doubt this will go down alongside Kramnik missing a mate in 1 but it's certainly on the same level.

Quote

01-24-2012 , 04:06 PM

#161

Noir_Desir

veteran

Join Date: Feb 2007 Posts: 2,333

Quote:

Originally Posted by Dorilla

IIRC Houdini's first choice was Ke7, which gives white the option to trade rooks but the black king ends up on c7. This was what i was alluding to.

Quote

01-24-2012 , 04:19 PM

#162

Ajezz

grinder

Join Date: Mar 2006 Posts: 622

Actually, Houdini gives 20. Rc4 as the best move in this position (alongside with 20. Re3). 20. Rxc5 is evaluated about -0.5 worse than Rc4 (-1.2 instead of -0.7), because of 20. Rxc5 Qd4+ 21. Kf1 bxc5. If now 22. Bxa8 Rxa8 then Black's position is way, way better, probably winning. And if 22. Qxd3 (apparently best) Rad8 Black remains an exchange up.

That's all computer evaluation and not my thoughts obv. 20. Rxc5 is the most natural looking move of course and I am sure I would have played it in a game.

Quote

01-24-2012 , 04:31 PM

#163

Dorilla

enthusiast

Join Date: Jan 2012 Posts: 93

Quote:

Originally Posted by Ajezz

Hmm I missed that move. But indeed it seems pretty bad. White has trouble defending his b-pawn. If like Qd2 then Rb8 Rb1 c4 and c3 comes.

Quote

01-24-2012 , 08:28 PM

#164

EGarrett

old hand

Join Date: Oct 2007 Posts: 1,562

Karjakin c***blocking history obviously.

Quote

01-24-2012 , 09:34 PM

#165

DiggertheDog

Pan Troglodytes

Join Date: Mar 2008 Posts: 57,791

Carlsen
27.h4?

Not suprised knight ended up not being an obstacle in that endgame

Quote

01-24-2012 , 10:34 PM

#166

bigpooch

veteran

Join Date: Sep 2003 Posts: 3,208

Quote:

Originally Posted by Noir_Desir

Instead of 47...Rb7?, Ivanchuk expected 47...Ke6 48. Rh6+ Ke7 and now on 49. h4 not 49...gxh4? 50. Rh7+ and 51. Rxh4 ( likely +- ) but 49...Rd7+ 50. Ke3 gxh4 51. Rxa6 Rb7 52. Kf4 Rb3 and it looks like Black can hold with accurate play.

Quote

01-25-2012 , 03:54 AM

#167

Do it Right

Pooh-Bah

Join Date: Jul 2010 Posts: 3,890

Quote:

Originally Posted by Ajezz

Hahaha. That's what I get for analyzing a position at 4am.

The computer eval was the result of dumping the FEN into crafty for about .05 seconds and seeing it agreed since it was all so 'obvious' anyhow.

Quote

01-25-2012 , 08:53 AM

#168

Noir_Desir

veteran

Join Date: Feb 2007 Posts: 2,333

i'll never get my head around the positional concept seen in Nakamura-Carlsen (letting your bishop be taken on f4). I know it crops up in a lot of Catalans but geez is the e5-bind really worth the bishop pair and pawn structure deterioration?

Lots of fireworks to be expected today, Naka-Carlsen looks interesting, Aronian casually sacrificed the exchange on move 10 or so, Ivanchuk playing the Benoni...

Quote

01-25-2012 , 11:16 AM

#169

Freddy777

journeyman

Join Date: Feb 2005 Posts: 309

Giri - Aronian is fascinating. Is that a well known sacrafice in these kind of positions? My first thought was wtf are you doing, but I also didn't believe him when he sacked his queen against Naka.

Besides the fact that he's crushing the tournament it's also really hard to not root for him when he plays games like this.

Quote

01-25-2012 , 11:19 AM

#170

Freddy777

journeyman

Join Date: Feb 2005 Posts: 309

Quote:

Originally Posted by Ajezz

I missed yesterdays games (man I picked the wrong day to not care about tata) but I just watched Karjakin replaying the game and this was exactly what he said.

Clip is on tata steel facebook.

Quote

01-25-2012 , 11:29 AM

#171

Freddy777

journeyman

Join Date: Feb 2005 Posts: 309

Quote:

Originally Posted by Noir_Desir

Haast-Grover from group C is pretty funny. I don't think i have ever seen a maneuvre like this before.

But it's a Winawer french so it could be totally standard for all i know.

You mean Nf3-g1-h3? What's weird about that?