Author: blass uri
Date: 21:08:41 04/14/00
Go up one level in this thread
On April 14, 2000 at 14:41:08, KarinsDad wrote:
>On April 13, 2000 at 20:32:01, Robert Hyatt wrote:
>
>[snip]
>>
>>You are talking about "forward pruning" which is full of danger. Your
>>eval likely doesn't understand deep tactics, yet you will be letting it
>>dictate which moves you search looking for tactics and which you don't.
>>
>>It is _very_ difficult to do this and not cause huge search problems...
>
>
>That is why Fathom will be so dangerous ("yeah, right" says all of the old
>programmers). It does a type of forward pruning. Whether it will be successful
>with this, only time will tell.
I understand that you mean to selective search(this is what the old programmers
did) that and not to searching part of the moves to a reduced depth.
I think that the first thing to do in order to check these pruning ideas is to
take a database of about 10,000 comp-comp games(you can use the ssdf games) and
see if your pruning idea rejects the moves that were played.
If you reject good moves that were played even only in one case out of 1000
positions then your forward pruning try is not good.
If you only reject some bad moves that were played because of bugs then your
pruning idea may be good(probability not more than 1/1000000 for an error)
Uri
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.