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Subject: Re: Fruit 2.1 with and without Delta & Futility pruning compared

Author: Volker Pittlik

Date: 01:44:59 06/24/05

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On June 23, 2005 at 22:59:14, Aaron Gordon wrote:

>...
>Fruit v2.1 with no changes:
...
>30.0 Fruit 2.1
...

>Fruit 2.1 with Delta and Futility pruning enabled:
>
>33.5 Fruit 2.1
...

>Not definitive proof of anything, but I think it is starting to show a small
>trend that delta and futility pruning helps.

I just found Fruit performing a little bit worse with Futility and Delta
enabled.

Futility and Delta Pruning off:

No. Name             Win Draw Loss Unf.  Score Games       %
------------------------------------------------------------
  1 Fruit_21         +37  =26  -37   *0   50.0   100   50.0%
  2 Shredder8+BT-GS  +37  =26  -37   *0   50.0   100   50.0%


Futility and Delta Pruning on:

No. Name             Win Draw Loss Unf.  Score Games       %
------------------------------------------------------------
  1 Shredder8+BT-GS  +38  =28  -34   *0   52.0   100   52.0%
  2 Fruit_21         +34  =28  -38   *0   48.0   100   48.0%


But I think the differences are so small that even 1000 games wouldn't give a
significant result. Up to then I assume that there is no difference.

More details + download:
http://wbforum.volker-pittlik.name/viewtopic.php?p=13831#13831

Regards

Volker




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