Author: Ricardo Gibert
Date: 19:58:32 02/18/00
Go up one level in this thread
On February 18, 2000 at 03:43:31, Peter McKenzie wrote:
>On February 18, 2000 at 01:49:52, Steffen Jakob wrote:
>
>>Hi all,
>>
>>can someone please give me the solution (not only the key move (b4 or h4) but
>>whole lines) of position #7 from the "uskieg" test suite?
>>
>>[D]8/7p/p7/1p1k4/8/3K4/1P4PP/8 w
>>
>>How long does your program take to find the solution and which tablebases do you
>>have installed?
>>
>>Best wishes,
>>Steffen.
>
>LambChop likes 1.b4 from the word go, but after a few minutes doesn't see the
>win.
>
>I think 1.b4 does win, white has the plan of creating a passed pawn on the
>kingside to lure the black king away, then the white king gobbles the queenside
>pawns. This is a bit tricky to carry out because black's king is active.
>
>After 1.b4 Ke5 2.g3 Kd5 3.g4 Ke5 4.Ke3 Kd5 5.h4 white should be too fast.
>
>Instead, 2...Kf5 looks a better defense. Now 3.Ke3? Kg4 4.Kf2 Kh3 5.Kg1 a5! is
>fine for black.
>
>Better is 3.h3 Ke5 and I think the surprising 4.h4! is good for white.
>
>Hope I'm not talking nonsense here, its getting late :-)
>
>cheers,
>Peter
My analysis assisted by Fritz:
1.b4 Ke5 2.g3 Kf5 3.h3 Ke5 4.h4
[4.Ke3 Kd5 5.g4 Kc4 6.g5 Kxb4 7.h4 Ka3 probably =]
4...h5 5.Ke3 Kf5
[5...Kd5
A) 6.g4 hxg4 7.h5 (7.Kf4 a5=)
7...Ke5 8.h6 Kf6 9.Kf4 Kg6 10.Kxg4 a5=;
B) 6.Kf4 6...Kc4 7.g4 a5 8.g5 Kd5 9.g6
Ke6 10.g7 Kf7 11.g8Q+ Kxg8 12.bxa5+-]
6.Kf3 Ke5
[6...a5 7.bxa5 b4 8.Ke3+-]
7.g4 hxg4+ 8.Kxg4 a5=
This all looks fairly routine, but there could be something
clever Fritz & I missed.
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