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Subject: Re: about bug in fruit.2.2(I send bug report to fabien few minutes ago)

Author: Martin Giepmans

Date: 00:29:45 12/02/05

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On December 02, 2005 at 03:16:35, Martin Giepmans wrote:

>Of course only Fabien can know, but a possible explanation is that Fruit uses
>extensions that depend on game history, for example a recapture extension for
>recaptures on ply 1.
>When you enter the game there is a recapture (e5xf6) on ply 1 but when you enter
>the position there is none. This results in a different search tree.
>
>Martin


There is already a difference at depth 6, more extensions (i.e. higher max.
depth; I assume that the number after 6/ is the maximum depth?) and more nodes
when the game is entered.
This could be caused by history dependent extensions such as a recapture
extension on ply 1.


position entered:
1.Qxc3 Qxc3 2.bxc3 fxe5 3.Rd1 hxg4 4.Kc2
  =  (-0.17)   Depth: 6/16   00:00:00  21kN

game entered:
34.Qxc3 Qxc3 35.bxc3 fxe5 36.Rd1 hxg4 37.Kc2
  =  (-0.17)   Depth: 6/18   00:00:00  22kN



Now I'm curious what Fabien will say .. :)

Martin



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