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Subject: Re: Scatha 0.2.10

Author: Tord Romstad

Date: 02:05:28 11/08/05

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On November 08, 2005 at 04:26:22, Sedat wrote:

>Is Scatha 0.2.10 stronger than Glaurung Minz ?

Difficult to compare, because they don't play the same game.  :-)

Scatha plays hexagonal chess, while Glaurung plays normal chess.  Scatha
was written first (some time during the summer last year, IIRC), and
Glaurung started as a straightforward translation of Scatha to normal
chess.  Since then, the two programs have been developed in parallell;
whenever I add some new feature or improvement to Glaurung, I add the
same code to Scatha.  The source code in the two programs is still
95% the same.  By making a few arrays a bit bigger, I could probably
have merged both programs to a single executable.

At the moment, Scatha 0.2.10 is a bit more up to date than the latest
public version of Glaurung, but the differences are not very exciting.
This autumn I have mostly worked on the GUI; the engine code hasn't
changed much.  The only really important difference between Scatha
0.2.10 and Glaurung Mainz is the hash table bug mentioned elsewhere
in this thread.  If it turns out that fixing this bug leads to a big
improvement in strength, I will probably release a Glaurung 0.2.10
some time soon.

The names of my programs are probably rather confusing at the moment.
The GUI is called "Scatha", even though it contains *both* of the
engines (Scatha and Glaurung).  This has historical reasons -- originally
the GUI only supported hexagonal chess, and I intended to write a
separate GUI for Glaurung later.  Eventually I decided that it would
be easier to add rectangular chess support to the Scatha GUI instead.

Perhaps I should change the name of the GUI to something else in
order to avoid the confusion.  I should also write some kind of
Glaurung and Scatha FAQ.

Tord



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