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Cutechess accepts normal FEN format rnbkqbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBKQBNR w - - 0 1 (default)
or the shortened format rnbkqbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBKQBNR w 0 1 because Shatranj has neither castling nor en passant captures.
The format used here rnbkqbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBKQBNR w - - gets accepted almost accidently. This does not make a difference at the moment. The move count is ignored currently.
However, this might change, because the FEN handling of cutechess is inconsistent for black positions and odd numbers of plies. position fen <FEN black to move> moves <move1> <move2> <move3>.
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@alwey Leaving out the move counts also works for other variants (is that a feature or should I not rely on that it works?), so is the problem the ambiguity between using the short notation and leaving out the move counts?
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@ianfab: Leaving out move counts is not a feature. It just works because of the current implementation. The move counts may get important for some variants or certain tests. For now it may work as is but this can change suddenly, so it might be better to provide the counts (on occasion).
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Cutechess accepts normal FEN format
rnbkqbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBKQBNR w - - 0 1(default)or the shortened format
rnbkqbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBKQBNR w 0 1because Shatranj has neither castling nor en passant captures.The format used here
rnbkqbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBKQBNR w - -gets accepted almost accidently. This does not make a difference at the moment. The move count is ignored currently.However, this might change, because the FEN handling of cutechess is inconsistent for black positions and odd numbers of plies.
position fen <FEN black to move> moves <move1> <move2> <move3>.fa64a3dThere was a problem hiding this comment.
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@alwey Leaving out the move counts also works for other variants (is that a feature or should I not rely on that it works?), so is the problem the ambiguity between using the short notation and leaving out the move counts?
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@ianfab: Leaving out move counts is not a feature. It just works because of the current implementation. The move counts may get important for some variants or certain tests. For now it may work as is but this can change suddenly, so it might be better to provide the counts (on occasion).
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E.g. endgame books would need counts.
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Ok, thanks.