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Subject: Re: Scatha 0.2.7 bug fix!

Author: Tom Likens

Date: 10:36:36 10/13/05

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On October 13, 2005 at 10:29:06, Tord Romstad wrote:

>On October 13, 2005 at 09:19:13, Tom Likens wrote:
>
>>Hmm Tord,
>>
>>I noticed in the screen shots of the GUI that you haven't won too many
>>games against Scatha ;-)
>
>It is even worse than it looks.  I have never been able to score even a
>single quarter point (the loser gets a quarter of a point in the case of
>stalemate) against Scatha, and most of the time I am behind in material
>before move 20.  I hoped my new "Scatha Brute Force" engine (which
>uses plain PVS without null-move or other pruning) would be less
>invincible, but it turns out that I hardly notice any difference (except
>the displayed search depth).
>
>I am beginning to suspect that hexagonal chess is a fundamentally
>more difficult game for humans than rectangular chess.  The chess
>pieces (except for the bishop) are more powerful on the hexagonal
>board, which results in a much bigger number of complex tactical
>motifs, mating patterns, and the like.   The sheer number and
>complexity of the patterns makes them difficult to recognize
>and remember.  It feels like I lose to an entirely new type of
>tactical shot in every single game (except when I just make an
>elementary blunder, which is also not unusual).
>
>Tord


It sounds interesting.  Perhaps I'll give it a try this weekend.  As far as
the various search techniques you mentioned, this is an intriquing time for
me.  I've finally gotten serious about a new engine and I'm slowly adding
in the techniques mentioned.  My testing is much better now then when I
started chess programming, so I hope to get a better quantative feel for
the value of each addition.  Of course we'll see...

--tom

--tom



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