Author: Robert Hyatt
Date: 07:49:28 08/20/04
Go up one level in this thread
On August 20, 2004 at 09:02:04, Kurt Utzinger wrote:
>Again an impressive analysis of Yace showing that
>this program is one of the best (if not the best)
>engine in the endgame.
>Kurt
I think that is a bit misplaced here. It took yace 6.5 _minutes_ to find the
win. I doubt either program playing the _real_ game had 6.5 minutes to spend on
that move.
However, without that, I can't imagine Crafty drawing this unless there is (a)
no endgame tables available; (b) very little time left; (c) it is playing in a
mode where it has no game history and can't detect repetitions. Here is output
from Crafty in this position:
19 40.64 -4.25 1. ... Bb7 2. Nd2 Bd4 3. Nf3 Bf6 4.
Ne1 Ke3 5. Kg1 Ke2 6. Nf3 Be4 7. Nh2
Bd4+ 8. Kh1 Kf2 9. Ng4+ Ke1 <HT> (s=7)
19 1:14 -1 1. ... Ke3!!
19 1:15 -3 1. ... Ke3!!
19 1:31 -5.45 1. ... Ke3 2. Kh1 Ke2 3. Kh2 Be3 4.
Nxh4 Kf2 5. Kh1 Bc4 6. Nf5 Bf4 7. g3
Bd5+ 8. Kh2 Be5 9. h4 Be6 10. Kh3 Bxf5+
11. g4 Be4 12. h5
19-> 1:33 -5.45 1. ... Ke3 2. Kh1 Ke2 3. Kh2 Be3 4.
Nxh4 Kf2 5. Kh1 Bc4 6. Nf5 Bf4 7. g3
Bd5+ 8. Kh2 Be5 9. h4 Be6 10. Kh3 Bxf5+
11. g4 Be4 12. h5 (s=2)
20 1:34 -1 1. ... Ke3!!
20 1:38 -3 1. ... Ke3!!
20 1:41 -6.50 1. ... Ke3 2. Kh1 Ke2 3. Ng1+ Kf1 4.
Nf3 Bg3 5. Nh2+ Bxh2 6. Kxh2 Kf2 7.
Kh1 Ke3 8. Kh2 Kf4 9. g3+ hxg3+ 10.
Kg1 Kg5 11. h4+ Kxh4 12. Kf1 Kh3 13.
Kg1 g2 14. Kf2 Kh2
20-> 3:48 -6.50 1. ... Ke3 2. Kh1 Ke2 3. Ng1+ Kf1 4.
Nf3 Bg3 5. Nh2+ Bxh2 6. Kxh2 Kf2 7.
Kh1 Ke3 8. Kh2 Kf4 9. g3+ hxg3+ 10.
Kg1 Kg5 11. h4+ Kxh4 12. Kf1 Kh3 13.
Kg1 g2 14. Kf2 Kh2 (s=16)
21 3:51 -1 1. ... Ke3!!
I only used 5-piece endgame tables which everybody should have today...
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