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Subject: Re: my next release of a modified crafty

Author: Tony Werten

Date: 23:57:31 07/07/03

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On July 08, 2003 at 01:14:28, Mike Byrne wrote:

>will get this problem right ...

I'm not sure that is something to be proud about. XiniX needs <.5 sec and less
than 5 ply (I don't show a pv until then ) without tablebases.

OK, it doesn't give a checkmate score back, but just a "am checkmating" score of
>60

Tony

>
>[d]1q1k4/2Rr4/8/2Q3K1/8/8/8/8 w - -
>White(1): st 20
>search time set to 20.00.
>White(1): go
>end-game phase
>              clearing hash tables
>              time surplus   0.00  time limit 20.00 (20.00)
>              depth   time  score   variation (1)
>starting thread 1
>                2->   0.05   0.01   1. Rxd7+ <EGTB>
>                3     0.05   0.01   1. Rxd7+ <EGTB>
>                3     0.07     ++   1. Kh6!!
>                3     0.07   5.60   1. Kh6 Qa8 2. Qf8+ Kxc7 3. Qxa8
>                3->   0.07   5.60   1. Kh6 Qa8 2. Qf8+ Kxc7 3. Qxa8
>                4     0.07   5.45   1. Kh6 Qa8 2. Qf8+ Kxc7 3. Qxa8 Kb6
>                4->   0.08   5.45   1. Kh6 Qa8 2. Qf8+ Kxc7 3. Qxa8 Kb6
>                5     0.08     ++   1. Kh6!!
>                5     0.08  10.50   1. Kh6 Ke8 2. Qe5+ Kd8 3. Rxd7+ Kxd7
>                                    4. Qxb8 Kc6
>                5->   0.10  10.50   1. Kh6 Ke8 2. Qe5+ Kd8 3. Rxd7+ Kxd7
>                                    4. Qxb8 Kc6 (s=2)
>                6     0.11     ++   1. Kh6!!
>                6     0.13  Mat33   1. Kh6 Rxc7 <EGTB>
>                6->   0.16  Mat33   1. Kh6 Rxc7 <EGTB> (s=2)
>                7     0.16  Mat33   1. Kh6 Rxc7 <EGTB>
>                7->   0.27  Mat33   1. Kh6 Rxc7 <EGTB>
>                8     0.27  Mat33   1. Kh6 Rxc7 <EGTB>
>                8->   0.79  Mat33   1. Kh6 Rxc7 <EGTB>
>                9     0.79  Mat33   1. Kh6 Rxc7 <EGTB>
>                9->   7.91  Mat33   1. Kh6 Rxc7 <EGTB>
>               10     7.91  Mat33   1. Kh6 Rxc7 <EGTB>
>               10->  11.43  Mat33   1. Kh6 Rxc7 <EGTB>
>               11    11.43  Mat33   1. Kh6 Rxc7 <EGTB>
>              time=20.11  cpu=162%  mat=0  n=25053312  fh=98%  nps=1245k
>              ext-> chk=4353348 cap=61931 pp=0 1rep=175341 mate=0
>              predicted=0  nodes=25053312  evals=1
>              endgame tablebase-> probes=9436  hits=9436
>              SMP->  split=103  stop=15  data=7/32  cpu=32.69  elap=20.11
>
>mate in 33 moves.



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