Author: Dan Andersson
Date: 18:32:23 10/07/04
Go up one level in this thread
On October 07, 2004 at 21:20:42, John Merlino wrote:
>On October 07, 2004 at 18:05:29, martin fierz wrote:
>
>>On October 07, 2004 at 12:10:55, martin fierz wrote:
>>
>>>i'm just watching kramnik-leko, kramnik is getting a terrible beating in the
>>>marshall. from the time spent on the moves, i think it's obvious that kramnik
>>>prepared everything until he got stunned by leko's 25...Qd3!!
>>>
>>>[D] 6k1/5p1p/P1pb1nq1/6p1/3P4/1BP2PP1/1P1Nb2P/R1B3K1 b - - 0 25
>>
>>hmm, my own thing is slower than everybody else :-(
>>it needs 4 minutes on a fast machine to see Qd3 is a winner. BTW it's official
>>now, kramnik missed this move in his preparation. given that all engines see it
>>rather quickly (the good ones, not mine...), it seems that they didn't check the
>>line with a computer - strange if you know that he has 3 GMs as seconds.
>>
>>also interesting: instead of 24. Qxe2? Bxe2 25. bxa6 which ran into 25...Qd3,
>>kramnik could have played 24. bxa6 - but while i was wondering whether that was
>>better, he already whipped out 24. Qxe2 (it was part of his preparation). what
>>is the verdict after 24.bxa6!? (see diagram)
>>
>>[D] 6k1/5p1p/P1pb1nq1/6p1/3P4/1BPb1PP1/1P1NrQ1P/R1B3K1 b - - 0 1
>>
>>cheers
>> martin
>
>I had already looked at 24.bxa6 as well with CM9_SKR on an AMD 2500. Here's my
>amateur analysis with the help of The King.
>
>24.bxa6 Rxf2 25.Kxf2 Qh6 26.Kg2 {26.Kg1 g4 Black wins} g4 27.fxg4 Qe3 {Black
>wins}
>
>So 24.bxa6 probably loses also, but things might have been more difficult for
>Leko if he wasn't ready with 25...Qh6. If instead, for example, 25...Qh5, then
>26.Ke3! Bg6 27.Nf1 Qh3 28.Bc4 Qc8 {to slow down the a-pawn} could save the game.
>I'm not too sure of this, and somebody else should confirm it.
>
>Note that 25...Qh6 26.Ke3 does not work, because of 26...Bb5 27.c4 Nd5+! and now
>if 28.cxd4 g4+ 29.f4 Qxh2 wins. And if 28.Kd3 then 28...Bxa6 29.Ne4 Qh5! wins,
>threatening Qxf3+.
>
Best defence after 25. ... Qh6 seems to be 26. Nf1 but black is pretty well off
in that line too, Q+pawns v. R+B after 26. ... Qh3 27. Bxg5 Bxf1 28. Rxf1 Qxh2+
and the q-side pawns are toast.
MvH Dan Andersson
>jm
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