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Subject: Re: EGTB: Until what depth ?

Author: Tony Werten

Date: 11:39:34 03/29/01

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On March 29, 2001 at 14:21:16, Christophe Theron wrote:

>On March 29, 2001 at 13:49:06, Tony Werten 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).
>>
>>Could be but that would mean, with an average depth of 10 to 12, you'd be
>>probing the first 4 to 6 ply. I mean, it helps but it could help more.
>>
>>That is, not counting extensions, but you if you search 10 ply, you don't know (
>>at ply 8 ) how many plies are still coming.
>>
>>cheers,
>>
>>Tony
>
>
>But you know how many plies you have done since the root position...

2 possibilities:
- We are talking about different things
- I don't get it

Might be both.

Tony

>
>
>    Christophe



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