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Subject: Re: No Castling - No FRC

Author: Uri Blass

Date: 10:03:33 06/21/03

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On June 21, 2003 at 12:35:10, Reinhard Scharnagl wrote:

>Hi Jorge,
>
>you may of course test Shuffle Chess with those positions,
>but do not call this to be Fischer Random Chess.
>
>Castling is essential to FRC, see following and related pages:
>[http://www.rescon.de/Compu/fullchess3_e.html] .
>
>Reinhard

Note that the programs may play FRC.

All the moves that they play in shuffle chess are legal in FRC.
The only problem is that they may not understand the moves of the opponent when
the opponent tries to castle but this can be solved by using setboard
instead of playing a move when the opponent tries to castle.

I believe that shredder and Fritz are stronger than Baron and chispa inspite of
the fact that they cannot consider castling but I may be wrong and the only way
to know is to test.

Note that not considering part of the moves is allowed and part of the programs
do not consider underpromotion.

I suggest that winboard or arena will send the program who know to play only
regular chess the commands  setboard and the time control after castling so it
is going to be possible to play even with engines that do not know to castle in
FRC.

They may be weaker because of not considering castling but I do not know if the
influence of this weakness is more than 150 elo and the top programs may be
better than baron or betsy by at least 200 elo.

Uri



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