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Subject: Re: THE 16 PLY CHALLENGE!

Author: Carlos del Cacho

Date: 13:04:05 09/15/00

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On September 15, 2000 at 02:44:48, Uri Blass wrote:

>On September 14, 2000 at 20:23:00, Dann Corbit wrote:
>
>>On September 14, 2000 at 19:53:00, pavel wrote:
>>[snip]
>>>mahamood,p - Junior 6.0
>>>r4r2/q1pb1pkp/1p1p2p1/2nPpP1P/2P1P3/p1N2P2/PP1Q4/2KR1BR1 w - - 0 1
>>>
>>>Analysis by Junior 6.0:
>>>
>>>1.f5xg6 a3xb2+ 2.Qd2xb2 h7xg6 3.h5xg6
>>>  ²  (0.52)   Depth: 3   00:00:00
>>>1.b2-b4 Nc5-b7 2.Qd2-g5 f7-f6 3.Qg5-g3 g6-g5 4.Nc3-b5 Bd7xb5 5.c4xb5
>>>  ±  (0.75)   Depth: 3   00:00:00  1kN
>>>  ±  (1.02)   Depth: 9   00:00:02  236kN
>>>1.f5-f6+ Kg7-h8 2.Qd2-h6 a3xb2+ 3.Kc1-b1 Rf8-g8 4.h5xg6 Rg8xg6 5.Rg1xg6 Nc5-e6
>>>6.d5xe6 Qa7xa2+ 7.Nc3xa2 Ra8-g8 8.Rg6xg8+ Kh8xg8 9.Qh6-g7#
>>>  ±  (1.05)   Depth: 9   00:00:02  317kN
>>>  +-  (#9)   Depth: 11   00:00:34  3963kN
>>>
>>>(mahamood, MyTown 15.09.2000)
>>>
>>>
>>>
>>>this is a joke right??
>>
>>Not at all.  You've only made it 11 plies, and the solution found is 18 plies
>>away.  There might be a better one.
>
>The analysis of Junior6 is not in plies.
>The depth has another meaning.
>
>There is no point in telling all programs to search 16 plies because 16 plies of
>many programs can miss mate in 2 because of null move pruning.
>
>The only point of the experiment is if the program does not do pruning and there
>is no top program that does no pruning.
>
>The only interesting experiment is to give programs the same time and not the
>same depth.
>
>Uri

You could add the same CPU, RAM, etc...

Carlos



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