Author: Robert Hyatt
Date: 10:40:37 09/22/99
Go up one level in this thread
On September 22, 1999 at 11:46:29, Howard Exner wrote:
>Do any of the programs with endgame tablebases solve this position?
>
>8/6Bp/6p1/2k1p3/4PPP1/1pb4P/8/2K5 b - - id Pos 111 - ECM98H.EPD; bm b3b2
>
>It looks too difficult for non tablebase programs.
Crafty solves it, but it takes longer than I would like to see... 11 minutes.
here is the output: (quad xeon with all the 5 piece ending databases).
15-> 1:46 -0.09 1. ... Kd6 2. Bf8+ Ke6 3. f5+ Kf6 4.
Kb1 Bd4 5. Ba3 h6 6. Bb2 h5 7. Bxd4
exd4 8. Kb2 hxg4 9. hxg4 d3 10. Kxb3
d2 11. Kc2
16 2:21 -0.17 1. ... Kd6 2. Bf8+ Ke6 3. f5+ gxf5
4. gxf5+ Kf6 5. Bc5 h5 6. Kb1 Kf7 7.
Ba3 Kf6 8. Kc1 h4 9. Bb2 Be1 10. Kd1
Bf2
(3) 16-> 4:07 -0.17 1. ... Kd6 2. Bf8+ Ke6 3. f5+ gxf5
4. gxf5+ Kf6 5. Bc5 h5 6. Kb1 Kf7 7.
Ba3 Kf6 8. Kc1 h4 9. Bb2 Be1 10. Kd1
Bf2
(2) 17 6:09 -0.26 1. ... Kd6 2. Bf8+ Ke6 3. f5+ Kf6 4.
Ba3 Bd4 5. Kb1 Bc3 6. g5+ Kf7 7. f6
Bd2 8. Bc1 <HT>
17 11:26 0.00 1. ... b2+ 2. Kc2 exf4 3. Bxc3 f3 4.
Be1 Kd4 5. Bf2+ Kxe4 6. Ba7 Kf4 7.
Bf2 Ke4
(4) 17-> 11:42 0.00 1. ... b2+ 2. Kc2 exf4 3. Bxc3 f3 4.
Be1 Kd4 5. Bf2+ Kxe4 6. Ba7 Kf4 7.
Bf2 Ke4
Don't know whether it will fail high at 18 or not, however...
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