Author: Bernhard Bauer
Date: 03:58:33 11/27/00
Go up one level in this thread
On November 26, 2000 at 19:36:45, Mogens Larsen wrote:
Crafty 17.14 with tablebases:
(4) 11-> 16.72 2.23 1. h5 h6 2. Kf5 Nd6+ 3. Kg6 Ke6 4.
Kxh6 g4 5. Kg6 g3 6. h6 g2 7. Ra1
(3) 12 20.91 2.35 1. h5 h6 2. Kf5 Nd6+ 3. Kg6 g4 4. Ra4
g3 5. Ra3 g2 6. Re3+ Kd7 7. Rg3 Ke6
8. Rxg2
(4) 12-> 36.23 2.35 1. h5 h6 2. Kf5 Nd6+ 3. Kg6 g4 4. Ra4
g3 5. Ra3 g2 6. Re3+ Kd7 7. Rg3 Ke6
8. Rxg2
(3) 13 41.72 2.45 1. h5 h6 2. Kf5 Nd6+ 3. Kg6 Ke6 4.
Kxh6 g4 5. Kg6 g3 6. h6 g2 7. Ra1 Nc4
8. Rg1
(4) 13-> 1:02 2.45 1. h5 h6 2. Kf5 Nd6+ 3. Kg6 Ke6 4.
Kxh6 g4 5. Kg6 g3 6. h6 g2 7. Ra1 Nc4
8. Rg1
(3) 14 1:28 2.48 1. h5 h6 2. Kd5 Kf8 3. Ra7 g4 4. Ke6
Ng5+ 5. Kf5 g3 6. Ra8+ Ke7 7. Ra3 g2
8. Rg3 Nf3 9. Rxg2
14-> 2:41 2.48 1. h5 h6 2. Kd5 Kf8 3. Ra7 g4 4. Ke6
Ng5+ 5. Kf5 g3 6. Ra8+ Ke7 7. Ra3 g2
8. Rg3 Nf3 9. Rxg2
15 3:45 2.85 1. h5 h6 2. Kf5 Nd6+ 3. Kg6 g4 4. Kxh6
g3 5. Kg6 Nc4 6. Ra1 Ne5+ 7. Kf5 Nd7
Crafty 17.14 without tablebases:
(4) 15-> 1:15 2.93 1. Kf5 gxh4 2. Ra7+ Kf8 3. Kf6 Nd6
4. Rxh7 Ne4+ 5. Kf5 Nc5 6. Rc7 Nb3
7. Kf6 Ke8 8. Re7+ Kd8 9. Rh7 Kc8 10.
Rxh4
(3) 16 1:33 2.87 1. Kf5 gxh4 2. Ra7+ Kf8 3. Kf6 Nd6
4. Ra8+ Ne8+ 5. Ke6 h6 6. Kd7 Kg7 7.
Rxe8 Kf6 8. Re3 Kf5 9. Kd6 Kf4 10.
Rd3
16 3:52 2.89 1. h5 h6 2. Kf5 Nd6+ 3. Kg6 g4 4. Kxh6
g3 5. Kg5 Ke6 6. Ra2 Ke5 7. Re2+ Ne4+
8. Kh4 Kd4 9. Rxe4+ Kxe4 10. Kxg3
(2) 16-> 4:34 2.89 1. h5 h6 2. Kf5 Nd6+ 3. Kg6 g4 4. Kxh6
g3 5. Kg5 Ke6 6. Ra2 Ke5 7. Re2+ Ne4+
8. Kh4 Kd4 9. Rxe4+ Kxe4 10. Kxg3
All done on a 2xP3-500
Kind regards
Bernhard
>On November 26, 2000 at 18:19:44, Mike S. wrote:
>
>>In general, trading is good for the side being ahead in material. This is basic
>>chess knowledge, known to most programs. But in the endgame, it's often wrong to
>>trade the last pawn, if the resulting material doesn't allow to win (a common
>>rule known from beginner's books is, that even the advantage of a minor piece
>>usually is not enough to win in a PAWNLESS endgame).
>>
>>This important motif can be tested with the following position from CSS 5/98,
>>where Mr. R.Petrykowski reported from a game Fritz5/P133 vs. the Tasc R30. Does
>>your program keep the last pawn?
>
>According to my little test Gandalf, Yace and Little Goliath finds h5 without
>tablebases. Surprisingly enough Crafty 17.13 (native) with four and some five
>piece tables, wants to play Kf5 gxh4 for six minutes on my computer before
>changing.
>
>Mogens.
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