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Subject: Re: A move to search 2nd... Keep in the trans table?

Author: Tord Romstad

Date: 03:47:54 07/22/04

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On July 22, 2004 at 06:29:45, Dan Honeycutt wrote:

>On July 22, 2004 at 06:06:15, Tord Romstad wrote:
>
>>On July 21, 2004 at 22:09:58, Robert Hyatt wrote:
>>
>>>Nobody uses the transposition table to order the moves at ply=1.
>>
>>I do.  I agree that it might not be optimal, but it always seemed too messy
>>and complicated to me to have a separate search function at the root level.
>>The main search() function is called directly from the iterative deepening
>>loop, and the same move ordering is used at the root as at all other nodes
>>far from the leaves.
>>
>>Tord
>
>When you find a new best move at the root do you not reorder and keep the old
>best move as second to be searched?

No, I don't.

>To me that seems logical and not too messy.

I agree that it seems logical, but I don't have a separate root search
function, and I don't want to clutter my search function with too many

if(Ply==0) { ... }

statements.  It is very likely that I will try something like this in
my new engine, though (probably by using a separate root search function).

Tord





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