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Subject: Re: ChessGenius 2.0 for Palm - ARM support

Author: Tord Romstad

Date: 03:23:56 11/23/03

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On November 23, 2003 at 03:38:57, Alastair Scott wrote:

>On November 22, 2003 at 16:03:19, ERIQ wrote:
>
>>On November 22, 2003 at 15:47:54, Jason Waugh wrote:
>>
>>
>>>Up to 20 times faster! 400 ELO stronger!
>>we will see ?
>
>Well, on my Zire 71 (which is almost the slowest ARM PalmOS machine) it is a
>factor of 8-10 faster - usually 30,000-40,000 nodes per second as opposed to
>3,000-4,000.

It's still quite a bit faster than my Tungsten T (original version).  The ARM
engine does
around 25 kN/s in the middle game, while the 68k engine does around 1500 N/s.
These numbers are for beta 2 (I haven't downloaded the final version yet), but I
guess
the final version is no faster.

I'm extremely impressed by the new Genius so far.  In particular, it is
tactically very
fast, considering the slow hardware.

>The strength is, as usual, hard to quantify but I'd say that games between me
>and it are, usually, 1/2 or 2/3 as long as with the old engine ;)

I played a 6-game time handicap match between Chess Genius on my Tungsten T
and Gothmog 0.4.2 running on a Pentium IV 2.4 GHz.  I gave Genius 15 minutes
and Gothmog 1 minute per game.  This time handicap is not nearly enough to
compensate for Genius' hardware disadvantage; I think the PIV should be at least
100 times faster.

Genius managed to score 1.5 points (3 draws) in the 6 games, which must be
considered a remarkably good score.  Of course more games are needed to
make any accurate conclusions, but Genius is clearly very strong.

Tord



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