Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Differences between 0x88 ,10x12 and Bitboards!?

Author: Gian-Carlo Pascutto

Date: 11:56:27 11/19/02

Go up one level in this thread


On November 19, 2002 at 14:53:45, Russell Reagan wrote:

>On November 19, 2002 at 14:33:53, Gian-Carlo Pascutto wrote:
>
>>A factor 2? I don't know about you, but I think a factor 2 is _big_.
>
>Surely a factor of two in move generation is not that significant. Even if you
>had an effective branching factor of 2 (which no one has consistently) you still
>wouldn't gain even an extra ply.
>
>And a 2x speedup in move generation or make/unmake doesn't indicate that the
>engine is any faster at all. It might do things elsewhere that someone else does
>in make/unmake for example.
>
>A factor of 2 in move generation or make/unmake says that they're in the same
>ballpark to me.

Then what's the point in mentioning this as a proof that bitboards
are not inferior on 32-bit hardware?

--
GCP



This page took 0.3 seconds to execute

Last modified: Thu, 07 Jul 11 08:48:38 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.