Author: Christophe Theron
Date: 12:08:39 03/29/01
Go up one level in this thread
On March 29, 2001 at 14:25:18, Robert Hyatt wrote:
>On March 29, 2001 at 13:31:59, Christophe Theron wrote:
>
>>On March 29, 2001 at 09:14:57, Robert Hyatt wrote:
>>
>>>On March 29, 2001 at 06:22:13, Jouni Uski wrote:
>>>
>>>>On March 29, 2001 at 06:17:50, Alexander Kure wrote:
>>>>
>>>>>On March 29, 2001 at 04:37:19, Tony Werten wrote:
>>>>>
>>>>>>Hi all,
>>>>>>
>>>>>>until what depth do various programs probe the tablebases ?
>>>>>>
>>>>>>cheers,
>>>>>>
>>>>>>Tony
>>>>>
>>>>>
>>>>>Hi Tony,
>>>>>
>>>>>In London 2000, I let Nimzo 8 play with a depth of 6 plies, but later I came to
>>>>>the conclusion that 8 plies might be better overall. This is indeed the default
>>>>>setting of NimzoX and Varguz playing on ICC.
>>>>>
>>>>>Greetings
>>>>>Alex
>>>>
>>>>Sorry one stupid question: is this the first or last 6/8 plys?
>>>>
>>>>Jouni
>>>
>>>
>>>His statement would make no sense if it were the _last_ 6-8 plies. Those
>>>are the ones that kill performance if you aren't careful. The first 6-8 plies
>>>don't cost a thing.
>>
>>
>>
>>But it could also mean it probes TBs in all the plies except the last 6/8.
>>
>>Meaning that if Nimzo is doing a X plies search, then the program probes the TBs
>>in the tree for all nodes that have a distance from the root below or equal to
>>X-6 (or X-8).
>>
>>I don't think that probing the TBs in the first 6/8 plies of the search makes
>>any sense.
>>
>>
>> Christophe
>
>
>That is another explanation. However, I probe the tablebases in the _right_
>places only... whether it is in the first ply or the last. But only after
>a capture that drops total pieces <= 5.
Naturally. There are even more ways to filter and reduce significantly the
number of TB accesses which are not going to be of any use.
Christophe
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