Winboard Forum

Hello everybody!

Aquilon is a CECP chess engine written in C, using a chessboard of 80 squares, and able to play capablanca, caparandom, fischerandom and normal variants.

This first version play pure random moves. I intend to use it as an opponent for the next versions. Until now, it seems to work well.

The program has an extension (based on Cairo library) with allows to make pictures of a position, using SMIRF chess pieces.



Compilation tested with GCC and TCC under Linux.

Homepage: https://gitlab.com/rchastain/aquilon

The first version plays illegal moves in normal variant (and probaly also in capablanca variant), because the traditional notation for castling moves is not handled properly. This is fixed now, but there will be the same problem with castling move output. So I think that the really first working version will be 0.0.3.

First version with a basic best move function. It doesn't behave too bad.

Traditional chess tournament.

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Rank Name              Elo    +    - games score oppo. draws
   1 TuxedoCat 0.0.2   598   44   42   160   73%   388   26%
   2 Aquilon 0.0.4     553   41   40   160   67%   397   37%
   3 Alouette 0.1.7    535   41   40   160   64%   400   33%
   4 Durandal 0.1.2    487   40   40   160   56%   410   34%
   5 NEG 1.3           364   42   43   160   37%   434   27%
   6 Aquilon 0.0.3       0   69   87   160    3%   507    7%

Capablanca variant.

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Rank Name              Elo    +    - games score oppo. draws
   1 Sjaak 524         849  163  130    32   91%   351    0%
   2 Smirf BC-173g-X   774  144  123    32   84%   369    0%
   3 Aquilon 0.0.4     379  113  114    32   42%   468    3%
   4 Durandal 0.1.2    250  113  117    32   30%   501    9%
   5 Aquilon 0.0.3       0  124  175    32    3%   563    6%

Three weeks thinking night and day to that program.

Aquilon 0.0.4