Author: Bernhard Bauer
Date: 07:28:54 10/16/01
Go up one level in this thread
On October 16, 2001 at 09:23:09, Steffen Jakob wrote:
>On October 16, 2001 at 09:01:28, Uri Blass wrote:
>
>>On October 16, 2001 at 08:29:18, Steffen Jakob wrote:
>>
>>>On October 16, 2001 at 08:08:39, Jouni Uski wrote:
>>>
>>>>On October 16, 2001 at 07:58:15, Steffen Jakob wrote:
>>>>
>>>>>Hi,
>>>>>
>>>>>this is a position from a blitz game Hossa - Sjeng:
>>>>>
>>>>>[D]7k/4QP2/7p/6rP/8/1K6/6r1/8 b
>>>>>
>>>>>For a human it's obvious that this is a draw. Hossa was rather clueless and
>>>>>thought that white was winning. Are there any engines which show a draw value at
>>>>>once (without significant search depth)?
>>>>>
>>>>>Greetings,
>>>>>Steffen.
>>>>
>>>>Crafty shows 0.00 after some seconds, but with depth = 16.
>>>
>>>Which hash sizes did you use? Which hardware?
>>>
>>>Greetings,
>>>Steffen.
>>
>>I used p800 with 64 mbytes hash and my crafty18.10 found 0.00 evaluation in 15
>>seconds under chessbase.
>
>That's strange. I have crafty 18.11 here on my Linux PC. The CPU is an Athlon
>900. crafty has been compiled with gcc-3.0.1. I use 64 MBytes hash, 32 MBytes
>pawn hash, all 1-4 men tables and the important 5 men tables.
>
>I stopped the search after >12 minutes. Crafty had a fail low there at ply 19
>but still didnt show a draw score. Can somebody please confirm this result with
>a non-chessbase 18.11 crafty?
>
>Greetings,
>Steffen.
>
>...
>
> 12 3.07 2.50 1. ... R2g3+ 2. Kc4 R3g4+ 3. Kd3 Rg3+
> 4. Ke4 R3g4+ 5. Ke3 Rg3+ 6. Kd4 R3g4+
> 7. Kc3 Rg3+ 8. Kb4 R3g4+ 9. Ka3 Rg3+
> 10. Kb2 Rg2+ 11. Kc1 Rg1+ 12. Kd2 R5g2+
> 13. Kc3 <HT>
> 12-> 3.75 2.50 1. ... R2g3+ 2. Kc4 R3g4+ 3. Kd3 Rg3+
> 4. Ke4 R3g4+ 5. Ke3 Rg3+ 6. Kd4 R3g4+
> 7. Kc3 Rg3+ 8. Kb4 R3g4+ 9. Ka3 Rg3+
> 10. Kb2 Rg2+ 11. Kc1 Rg1+ 12. Kd2 R5g2+
> 13. Kc3 <HT>
> 13 5.42 2.50 1. ... R2g3+ 2. Kc4 R3g4+ 3. Kd3 Rg3+
> 4. Ke4 R3g4+ 5. Ke3 Rg3+ 6. Kd4 R3g4+
> 7. Kc3 Rg3+ 8. Kb4 R3g4+ 9. Ka3 Rg3+
> 10. Kb2 Rg2+ 11. Kc1 Rg1+ 12. Kd2 R5g2+
> 13. Kc3 <HT>
> 13-> 6.40 2.50 1. ... R2g3+ 2. Kc4 R3g4+ 3. Kd3 Rg3+
> 4. Ke4 R3g4+ 5. Ke3 Rg3+ 6. Kd4 R3g4+
> 7. Kc3 Rg3+ 8. Kb4 R3g4+ 9. Ka3 Rg3+
> 10. Kb2 Rg2+ 11. Kc1 Rg1+ 12. Kd2 R5g2+
> 13. Kc3 <HT>
> 14 7.13 ++ 1. ... R2g3+!!
> 14-> 9.51 2.11 1. ... R2g3+ 2. Kc4 R3g4+ 3. Kd3 Rg3+
> 4. Ke4 R3g4+ 5. Ke3 Rg3+ 6. Kd4 R3g4+
> 7. Kc3 Rg3+ 8. Kb4 R3g4+ 9. Ka3 Rg3+
> 10. Kb2 Rg2+ 11. Kc1 Rg1+ 12. Kd2 R5g2+
> 13. Kc3 <HT>
> 15 12.39 1.88 1. ... R2g3+ 2. Kc4 R3g4+ 3. Kd3 Rg3+
> 4. Ke4 R3g4+ 5. Ke3 Rg3+ 6. Kd4 R3g4+
> 7. Kc3 Rg3+ 8. Kb4 R3g4+ 9. Ka3 Rg3+
> 10. Kb2 Rg2+ 11. Kc1 Rg1+ 12. Kd2 R1g2+
> 13. Ke1 Rg1+ 14. Ke2 R1g2+ 15. Kd1
> Rd5+ 16. Ke1
> 15-> 14.47 1.88 1. ... R2g3+ 2. Kc4 R3g4+ 3. Kd3 Rg3+
> 4. Ke4 R3g4+ 5. Ke3 Rg3+ 6. Kd4 R3g4+
> 7. Kc3 Rg3+ 8. Kb4 R3g4+ 9. Ka3 Rg3+
> 10. Kb2 Rg2+ 11. Kc1 Rg1+ 12. Kd2 R1g2+
> 13. Ke1 Rg1+ 14. Ke2 R1g2+ 15. Kd1
> Rd5+ 16. Ke1
> 16 17.10 ++ 1. ... R2g3+!!
> 16-> 22.46 1.49 1. ... R2g3+ 2. Kc4 R3g4+ 3. Kd3 Rg3+
> 4. Ke4 R3g4+ 5. Ke3 Rg3+ 6. Kd4 R3g4+
> 7. Kc3 Rg3+ 8. Kb4 R3g4+ 9. Ka3 Rg3+
> 10. Kb2 Rg2+ 11. Kc1 Rg1+ 12. Kd2 R1g2+
> 13. Ke1 Rg1+ 14. Ke2 R1g2+ 15. Kd1
> Rd5+ 16. Ke1
> 17 26.14 ++ 1. ... R2g3+!!
> 17-> 35.10 1.10 1. ... R2g3+ 2. Kc4 R3g4+ 3. Kd3 Rg3+
> 4. Ke4 R3g4+ 5. Ke3 Rg3+ 6. Kd4 R3g4+
> 7. Kc3 Rg3+ 8. Kb4 R3g4+ 9. Ka3 Rg3+
> 10. Kb2 Rg2+ 11. Kc1 Rg1+ 12. Kd2 R1g2+
> 13. Ke1 Rg1+ 14. Ke2 R1g2+ 15. Kd1
> Rd5+ 16. Ke1
> 18 44.75 ++ 1. ... R2g3+!!
> 18-> 1:01 0.71 1. ... R2g3+ 2. Kc4 R3g4+ 3. Kd3 Rg3+
> 4. Ke4 R3g4+ 5. Ke3 Rg3+ 6. Kd4 R3g4+
> 7. Kc3 Rg3+ 8. Kb4 R3g4+ 9. Ka3 Rg3+
> 10. Kb2 Rg2+ 11. Kc1 Rg1+ 12. Kd2 R1g2+
> 13. Ke1 Rg1+ 14. Ke2 R1g2+ 15. Kd1
> Rd5+ 16. Ke1
> 19 1:19 -- 1. ... R2g3+
> 19 12:15 1/24? 1. ... R2g3+
CraftyP3 an optimized version for the P3 gave on a 2xP3-450
with these values
selective 2 3
hash 48M
hashp 20M
tbpath=F:\TB
egtb !
cache 32M
st 300
setboard 7k/4QP2/7p/6rP/8/1K6/6r1/8 b
(2) 14-> 14.47 2.68 1. ... R2g3+ 2. Kc4 R3g4+ 3. Kd3 Rg3+
4. Ke4 R3g4+ 5. Kf3 Rg3+ 6. Kf4 R3g4+
7. Ke3 Rg3+ 8. Kd4 R3g4+ 9. Kc3 Rg3+
10. Kb4 R3g4+ 11. Ka3 Rg3+ 12. Kb2
Rg2+ 13. Kc1 Rg1+ 14. Kd2 Rd5+ 15.
Ke3
15 19.13 2.50 1. ... R2g3+ 2. Kc4 R3g4+ 3. Kd3 Rg3+
4. Ke4 R3g4+ 5. Kf3 Rg3+ 6. Kf4 R3g4+
7. Ke3 Rg3+ 8. Kd4 R3g4+ 9. Kc3 Rg3+
10. Kb4 R3g4+ 11. Ka3 Rg3+ 12. Kb2
Rg2+ 13. Kc1 Rg1+ 14. Kd2 R5g2+ 15.
Kc3 Rc1+ 16. Kd4
15-> 21.83 2.50 1. ... R2g3+ 2. Kc4 R3g4+ 3. Kd3 Rg3+
4. Ke4 R3g4+ 5. Kf3 Rg3+ 6. Kf4 R3g4+
7. Ke3 Rg3+ 8. Kd4 R3g4+ 9. Kc3 Rg3+
10. Kb4 R3g4+ 11. Ka3 Rg3+ 12. Kb2
Rg2+ 13. Kc1 Rg1+ 14. Kd2 R5g2+ 15.
Kc3 Rc1+ 16. Kd4
16 25.00 ++ 1. ... R2g3+!!
16 29.14 0.00 1. ... R2g3+ 2. Kc4 R3g4+ 3. Kd3 Rg3+
4. Ke4 R3g4+ 5. Kf3 Rg3+ 6. Kf4 R3g4+
7. Kf3
16-> 33.30 0.00 1. ... R2g3+ 2. Kc4 R3g4+ 3. Kd3 Rg3+
4. Ke4 R3g4+ 5. Kf3 Rg3+ 6. Kf4 R3g4+
7. Kf3
17 39.70 0.00 1. ... R2g3+ 2. Kc4 R3g4+ 3. Kd3 Rg3+
4. Ke4 R3g4+ 5. Kf3 Rg3+ 6. Kf4 R3g4+
7. Kf3
17-> 45.16 0.00 1. ... R2g3+ 2. Kc4 R3g4+ 3. Kd3 Rg3+
4. Ke4 R3g4+ 5. Kf3 Rg3+ 6. Kf4 R3g4+
7. Kf3
18 56.69 0.00 1. ... R2g3+ 2. Kc4 R3g4+ 3. Kd3 Rg3+
4. Ke4 R3g4+ 5. Kf3 Rg3+ 6. Kf4 R3g4+
7. Kf3
18-> 1:05 0.00 1. ... R2g3+ 2. Kc4 R3g4+ 3. Kd3 Rg3+
4. Ke4 R3g4+ 5. Kf3 Rg3+ 6. Kf4 R3g4+
7. Kf3
19 1:29 0.00 1. ... R2g3+ 2. Kc4 R3g4+ 3. Kd3 Rg3+
4. Ke4 R3g4+ 5. Kf3 Rg3+ 6. Kf4 R3g4+
7. Kf3
19-> 1:46 0.00 1. ... R2g3+ 2. Kc4 R3g4+ 3. Kd3 Rg3+
4. Ke4 R3g4+ 5. Kf3 Rg3+ 6. Kf4 R3g4+
7. Kf3
20 2:31 0.00 1. ... R2g3+ 2. Kc4 R3g4+ 3. Kd3 Rg3+
4. Ke4 R3g4+ 5. Kf3 Rg3+ 6. Kf4 R3g4+
7. Kf3
20-> 3:05 0.00 1. ... R2g3+ 2. Kc4 R3g4+ 3. Kd3 Rg3+
4. Ke4 R3g4+ 5. Kf3 Rg3+ 6. Kf4 R3g4+
7. Kf3
Kind regards
Bernhard
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