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Subject: Re: Crafty 16.7

Author: Robert Hyatt

Date: 17:30:32 05/27/99

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On May 27, 1999 at 13:36:03, Eugene Nalimov wrote:

>On May 27, 1999 at 08:07:46, Robert Hyatt wrote:
>
>>On May 27, 1999 at 07:32:02, Bernhard Bauer wrote:
>>
>>>On May 27, 1999 at 07:19:17, Jeremiah Penery wrote:
>>>
>>>>On May 27, 1999 at 07:04:14, Bernhard Bauer wrote:
>>>>
>>>>>On May 26, 1999 at 19:14:14, Michel Chassey wrote:
>>>>>
>>>>>>Received today from Crafty list :
>>>>>>
>>>>>>16.7 has been released, finally.
>>>>>>
>>>>>>I make no guarantees that it is playing better than 16.6, although it seems
>>>>>>to be doing so.  If anyone is interested in running a long match between
>>>>>>the two versions, feel free to do so and report the results.  Note that
>>>>>>both blitz _and_ long games are important.
>>>>>>
>>>>>>Windows executables will be available when Jason has time to compile them.  If
>>>>>>someone is interested in compiling one and sending it to me, I will
>>>>>>certainly put it on the ftp machine...
>>>>>>
>>>>>>Bob
>>>>>
>>>>>Looks like something is broken since crafty does't find Kb1! in fine70.
>>>>>Here the position:
>>>>>
>>>>>
>>>>>       +---+---+---+---+---+---+---+---+
>>>>>    8  |   |   |   |   |   |   |   |   |
>>>>>       +---+---+---+---+---+---+---+---+
>>>>>    7  | *K|   |   |   |   |   |   |   |
>>>>>       +---+---+---+---+---+---+---+---+
>>>>>    6  |   |   |   | *P|   |   |   |   |
>>>>>       +---+---+---+---+---+---+---+---+
>>>>>    5  | *P|   |   | P |   | *P|   |   |
>>>>>       +---+---+---+---+---+---+---+---+
>>>>>    4  | P |   |   | P |   | P |   |   |
>>>>>       +---+---+---+---+---+---+---+---+
>>>>>    3  |   |   |   |   |   |   |   |   |
>>>>>       +---+---+---+---+---+---+---+---+
>>>>>    2  |   |   |   |   |   |   |   |   |
>>>>>       +---+---+---+---+---+---+---+---+
>>>>>    1  | K |   |   |   |   |   |   |   |
>>>>>       +---+---+---+---+---+---+---+---+
>>>>>         a   b   c   d   e   f   g   h
>>>>>
>>>>>I think Kb1! is the only winning move.
>>>>
>>>>What depth/time did you let it search?  I think it takes something like depth=20
>>>>to see Kb1, but it should only take a few seconds, at most.
>>>>
>>>>Jeremiah
>>>
>>>               38->   1:04   1.14   1. Kb2 Ka8 2. Kc2 Kb8 3. Kc3 Kb7 4.
>>>                                    Kc4 Kb6 5. Kb3 Kc7 6. Ka2 Kd7 7. Ka3
>>>                                    Kd8 8. Kb2 Kc8 9. Kc1 Kb7 10. Kd2 Kc8
>>>                                    11. Kd3 Kc7 12. Ke2 Kd7 13. Ke1 Kd8
>>>                                    14. Kd1 Kc7 15. Kc1 <HT>
>>>               39     1:45    1/3   1. Kb2
>>>Here I stoped it.
>>>
>>>Kind regards
>>>Bernhard
>>
>>
>>UhOh...   Eugene, can you check this on your machine?  I just ran it and it
>>seems ok here.  Perhaps something is going wrong in optimizing?  IE do you
>>have something like purify to make sure I didn't introduce any wild memory
>>references are anything that would make this behave differently on linux and
>>NT?
>>
>>Bob
>
>Executable from your site, P6/200, NT 4.0.
>
>Crafty v16.7
>
>White(1): setboard /k/3p/p2P1p/P2P1P///K/ w
>
>       +---+---+---+---+---+---+---+---+
>    8  |   |   |   |   |   |   |   |   |
>       +---+---+---+---+---+---+---+---+
>    7  | *K|   |   |   |   |   |   |   |
>       +---+---+---+---+---+---+---+---+
>    6  |   |   |   | *P|   |   |   |   |
>       +---+---+---+---+---+---+---+---+
>    5  | *P|   |   | P |   | *P|   |   |
>       +---+---+---+---+---+---+---+---+
>    4  | P |   |   | P |   | P |   |   |
>       +---+---+---+---+---+---+---+---+
>    3  |   |   |   |   |   |   |   |   |
>       +---+---+---+---+---+---+---+---+
>    2  |   |   |   |   |   |   |   |   |
>       +---+---+---+---+---+---+---+---+
>    1  | K |   |   |   |   |   |   |   |
>       +---+---+---+---+---+---+---+---+
>         a   b   c   d   e   f   g   h
>
>White(1): go
>end-game phase
>              clearing hash tables
>              time surplus   0.00  time limit 30.00 (3:00)
>          s   depth   time  score   variation (1)
>               14     0.08   1.05   1. Kb2 Kb8 2. Kc2 Kc8 3. Kc3 Kb7 4.
>                                    Kc4 Kb6 5. Kc3 Kb7 <HT>
>               14->   0.12   1.05   1. Kb2 Kb8 2. Kc2 Kc8 3. Kc3 Kb7 4.
>                                    Kc4 Kb6 5. Kc3 Kb7 <HT>
>               15     0.20   1.05   1. Kb2 Kb8 2. Kc2 Kc8 3. Kc3 Kb7 4.
>                                    Kc4 Kb6 5. Kc3 Kb7 <HT>
>               15->   0.25   1.05   1. Kb2 Kb8 2. Kc2 Kc8 3. Kc3 Kb7 4.
>                                    Kc4 Kb6 5. Kc3 Kb7 <HT>
>               16     0.33   1.05   1. Kb2 Kb8 2. Kc2 Kc8 3. Kc3 Kb7 4.
>                                    Kc4 Kb6 5. Kd3 Kc7 6. Ke3 Kd7 7. Ke2
>                                    Kc8 8. Ke3 Kd7
>               16->   0.39   1.05   1. Kb2 Kb8 2. Kc2 Kc8 3. Kc3 Kb7 4.
>                                    Kc4 Kb6 5. Kd3 Kc7 6. Ke3 Kd7 7. Ke2
>                                    Kc8 8. Ke3 Kd7
>               17     0.47   1.05   1. Kb2 Kb8 2. Kc2 Kc8 3. Kc3 Kb7 4.
>                                    Kc4 Kb6 5. Kd3 Kc7 6. Ke3 Kd7 7. Ke2
>                                    Kc8 8. Kd2 Kd7 9. Kd3
>               17->   0.55   1.05   1. Kb2 Kb8 2. Kc2 Kc8 3. Kc3 Kb7 4.
>                                    Kc4 Kb6 5. Kd3 Kc7 6. Ke3 Kd7 7. Ke2
>                                    Kc8 8. Kd2 Kd7 9. Kd3
>               18     2.05   1.05   1. Kb2 Ka8 2. Kc3 Kb7 3. Kc4 Kb6 4.
>                                    Kd3 Kc7 5. Ke3 Kd7 6. Kf3 Ke7 7. Ke2
>                                    Kd7 8. Kd2 Kc8 9. Kd3 Kd7
>               18     2.11     ++   1. Kb1!!
>               18->   2.23   1.44   1. Kb1
>               19     2.33   1.05   1. Kb1 Kb8 2. Kc2 Kc8 3. Kd2 Kc7 4.
>                                    Kd3 Kb7 5. Ke3 Kc7 6. Kf3 Kd7 7. Kg3
>                                    Ke7 8. Kf2 Kd7 9. Kf3 Ke7 10. Ke3
>               19->   2.37   1.05   1. Kb1 Kb8 2. Kc2 Kc8 3. Kd2 Kc7 4.
>                                    Kd3 Kb7 5. Ke3 Kc7 6. Kf3 Kd7 7. Kg3
>                                    Ke7 8. Kf2 Kd7 9. Kf3 Ke7 10. Ke3
>               20     2.86     ++   1. Kb1!!
>               20->   4.50   1.44   1. Kb1 Kb8 2. Kc2 Kc8 3. Kd2 Kc7 4.
>                                    Kd3 Kb7 5. Ke3 Kc7 6. Kf3 Kd7 7. Kg3
>                                    Ke7 8. Kf2 Kd7 9. Kf3 Ke7 10. Ke3
>               21     5.95   1.10   1. Kb1 Kb8 2. Kc2 Kb7 3. Kd2 Kc8 4.
>                                    Kd3 Kc7 5. Kc4 Kb6 6. Kb3 Kc7 7. Kc3
>                                    Kb7 8. Kc2 Kb8 9. Kb1 Kc7 10. Kb2 Kc8
>                                    11. Kc3
>               21->   6.03   1.10   1. Kb1 Kb8 2. Kc2 Kb7 3. Kd2 Kc8 4.
>                                    Kd3 Kc7 5. Kc4 Kb6 6. Kb3 Kc7 7. Kc3
>                                    Kb7 8. Kc2 Kb8 9. Kb1 Kc7 10. Kb2 Kc8
>                                    11. Kc3
>               22    18.86     ++   1. Kb1!!
>               22    19.08   2.89   1. Kb1 Kb8 2. Kc2 Kc7 3. Kd3 Kb7 4.
>                                    Ke3 Kc7 5. Kf3 Kd7 6. Kg3 Ke7 7. Kh4
>                                    Kf6 8. Kh5 Ke7 9. Kg5 <HT>
>               22->  19.14   2.89   1. Kb1 Kb8 2. Kc2 Kc7 3. Kd3 Kb7 4.
>                                    Ke3 Kc7 5. Kf3 Kd7 6. Kg3 Ke7 7. Kh4
>                                    Kf6 8. Kh5 Ke7 9. Kg5 <HT>
>               23    19.23   2.99   1. Kb1 Kb8 2. Kc2 Kc7 3. Kd3 Kb7 4.
>                                    Ke3 Kc7 5. Kf3 Kd7 6. Kg3 Ke7 7. Kh4
>                                    Kf6 8. Kh5 Ke7 9. Kg5 Ke8 10. Kxf5
>                                    Kf7 11. Kg5 <HT>
>               23->  19.31   2.99   1. Kb1 Kb8 2. Kc2 Kc7 3. Kd3 Kb7 4.
>                                    Ke3 Kc7 5. Kf3 Kd7 6. Kg3 Ke7 7. Kh4
>                                    Kf6 8. Kh5 Ke7 9. Kg5 Ke8 10. Kxf5
>                                    Kf7 11. Kg5 <HT>
>               24    21.25   2.99   1. Kb1 Kb8 2. Kc2 Kc7 3. Kd3 Kb7 4.
>                                    Ke3 Kc7 5. Kf3 Kd7 6. Kg3 Ke7 7. Kh4
>                                    Kf6 8. Kh5 Ke7 9. Kg5 Ke8 10. Kxf5
>                                    Kf7 11. Kg5 Ke7 12. f5 Kd7
>               24->  21.31   2.99   1. Kb1 Kb8 2. Kc2 Kc7 3. Kd3 Kb7 4.
>                                    Ke3 Kc7 5. Kf3 Kd7 6. Kg3 Ke7 7. Kh4
>                                    Kf6 8. Kh5 Ke7 9. Kg5 Ke8 10. Kxf5
>                                    Kf7 11. Kg5 Ke7 12. f5 Kd7
>               25    22.84   3.06   1. Kb1 Kb8 2. Kc2 Kc7 3. Kd3 Kb7 4.
>                                    Ke3 Kc7 5. Kf3 Kd7 6. Kg3 Ke7 7. Kh4
>                                    Kf6 8. Kh5 Ke7 9. Kg5 Ke8 10. Kxf5
>                                    Kf7 11. Kg5 Ke7 12. f5 Kf7 13. f6
>               25->  22.92   3.06   1. Kb1 Kb8 2. Kc2 Kc7 3. Kd3 Kb7 4.
>                                    Ke3 Kc7 5. Kf3 Kd7 6. Kg3 Ke7 7. Kh4
>                                    Kf6 8. Kh5 Ke7 9. Kg5 Ke8 10. Kxf5
>                                    Kf7 11. Kg5 Ke7 12. f5 Kf7 13. f6
>              time=30.08  cpu=98%  mat=1  n=3983326  fh=94%  nps=132424
>              ext-> checks=3399 recaps=0 pawns=6599 1rep=13 thrt:0
>              predicted=0  nodes=3983326  evals=642380
>              endgame tablebase-> probes done=0  successful=0
>              hashing-> trans/ref=99%  pawn=99%  used=4%
>
>White(1): Kb1
>              time used:  30.14
>
>       +---+---+---+---+---+---+---+---+
>    8  |   |   |   |   |   |   |   |   |
>       +---+---+---+---+---+---+---+---+
>    7  | *K|   |   |   |   |   |   |   |
>       +---+---+---+---+---+---+---+---+
>    6  |   |   |   | *P|   |   |   |   |
>       +---+---+---+---+---+---+---+---+
>    5  | *P|   |   | P |   | *P|   |   |
>       +---+---+---+---+---+---+---+---+
>    4  | P |   |   | P |   | P |   |   |
>       +---+---+---+---+---+---+---+---+
>    3  |   |   |   |   |   |   |   |   |
>       +---+---+---+---+---+---+---+---+
>    2  |   |   |   |   |   |   |   |   |
>       +---+---+---+---+---+---+---+---+
>    1  |   | K |   |   |   |   |   |   |
>       +---+---+---+---+---+---+---+---+
>         a   b   c   d   e   f   g   h


Thanks Eugene... so the executable seems to be ok.  Now I wonder what caused
this problem in the first place...



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