Computer Chess Club Archives




Subject: Re: Chess program authors -- for Peter (ENG again)

Author: F. Huber

Date: 23:31:01 01/09/04

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On January 09, 2004 at 22:12:35, Peter Berger wrote:

>Please let me answer in English, trying to adress a rather popular
>misunderstanding (not directly answering you of course!).
>Chest is surely the most popular freeware matesolver availlable.
>Its author is Heiner Marxen (homepage , who is
>a a great, *incredibly* clever guy, and surely one of the nicest persons I ever
>met personally since I started to develop any interest in the world of
>chessprograms. Though it is impossible for a layman to follow him when he gets
>serious explaining his stuff , it is also impossible to not be deeply impressed
>by his dedication, his intelligence, his passion and his ideas.
>For maths people his work on the Busy Beaver machines might be more well-known
>Franz Huber made Chest availlable for us mainstream users by writing an UCI
>interface for it, and this was a great job done by him.
>But to the best of my knowledge ChestUCI still remains strictly an interface for
>Heiner Marxen's great matesolver, and the matesolving algorithms were all
>developped (or implemented) by him and his former teammates.

Hello Peter,

I don´t think that there´s any ´rather popular misunderstanding´ between Chest
and ChestUCI at all - and if, then it´s absolutely not my fault!
I´ve never let any doubt about it, _who_ is the author of this fantastic
matesolver, and everybody who takes a short look at my program description
can read this more than only once.

Yes, the mate solving algorithms are of course from Heiner Marxen, and they
are indeed so sophisticated, that I wouldn´t know at all how to add something
or improve them in any way.
But it´s also true, that I had to do a _lot_ of changes directly in the
original Chest source modules too, to make Chest as comfortable and
informative as it is now in conjunction with the interface ChestUCI -
e.g. output in coordinate format, sorting and rearranging of the solutions
(for automatically going through all main lines), showing all those search
informations (originally not implemented in Chest at all), finding only the
first solution (if wanted), etc. ... (to mention only a few changes!).

So it was really not as simple as many people may think: only transferring
the mate problem to Chest and then displaying Chests output wouldn´t have
taken me some hundred hours of programming within the last 1 1/2 years!
And it would also be interesting, how many percent of the people using
ChestUCI would still use the original Chest in its command line version,
if this interface wouldn´t exist - my guess is ´not more than 5%´.


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