Author: Robert Hyatt
Date: 07:15:48 11/20/99
Go up one level in this thread
On November 19, 1999 at 17:27:05, Gerrit Reubold wrote:
>The following position was reached during analysis of the game Matanovic -
>Botwinnik, 1969. The key move was found by Geller.
>
>White to move, find the only drawing move:
>8/8/8/p4p2/P6k/3K3P/8/8 w - - 0 1
>
>There are only two moves to be considered: Ke3 and Ke2, all other moves lose
>immediately.
>Although there are only kings and four pawns, it is not simple. I would be
>surprised if any program would find the solution (solution means: sensible main
>variation and draw score).
>
How about this:
11 1.07 0.00 1. Ke3 Kg3 2. Ke2 f4 3. Kf1 Kf3 4.
Kg1 Kg3 5. Kf1
11-> 1.10 0.00 1. Ke3 Kg3 2. Ke2 f4 3. Kf1 Kf3 4.
Kg1 Kg3 5. Kf1
12 1.53 0.00 1. Ke3 Kg3 2. Ke2 f4 3. Kf1 Kf3 4.
h4 Kg4 5. Kf2 Kxh4 <EGTB>
12-> 1.53 0.00 1. Ke3 Kg3 2. Ke2 f4 3. Kf1 Kf3 4.
h4 Kg4 5. Kf2 Kxh4 <EGTB>
13 1.72 0.00 1. Ke3 Kg3 2. Ke2 f4 3. Kf1 Kf3 4.
h4 Kg4 5. Kf2 Kxh4 <EGTB>
13-> 1.73 0.00 1. Ke3 Kg3 2. Ke2 f4 3. Kf1 Kf3 4.
h4 Kg4 5. Kf2 Kxh4 <EGTB>
14 2.10 0.00 1. Ke3 Kg3 2. Ke2 f4 3. Kf1 Kf3 4.
h4 Kg4 5. Kf2 Kxh4 <EGTB>
14-> 2.11 0.00 1. Ke3 Kg3 2. Ke2 f4 3. Kf1 Kf3 4.
h4 Kg4 5. Kf2 Kxh4 <EGTB>
15 3.47 0.00 1. Ke3 Kg3 2. Ke2 f4 3. Kf1 Kf3 4.
h4 Kg4 5. Kf2 Kxh4 <EGTB>
15-> 3.48 0.00 1. Ke3 Kg3 2. Ke2 f4 3. Kf1 Kf3 4.
h4 Kg4 5. Kf2 Kxh4 <EGTB>
16 4.78 0.00 1. Ke3 Kg3 2. Ke2 f4 3. Kf1 Kf3 4.
h4 Kg4 5. Kf2 Kxh4 <EGTB>
>The variations are:
>A) 1. Ke2? Kg3 2. h4 (2. Ke3 f4+) ... Kxh4 3. Kf3 Kg5 -+ (the black king
>captures a4, and the white king won't reach c1 in time)
>b) 1. Ke3!! Kg3 2. Ke2 f4 3. Kf1 Kxh3 4. Kf2 Kg4 (the black pawn at f4 draws
>(pawn at f5 wins!), white will reach c1 just in time!)
>
>I am sure that many programs will find Ke3!! by chance (as does my program,
>Bringer), but is there any program that scores this as a draw?
>
>Greetings,
>Gerrit
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