Author: Sune Fischer
Date: 09:30:11 02/07/04
Go up one level in this thread
On February 07, 2004 at 11:31:00, Jorge Pichard wrote:
>On February 07, 2004 at 07:29:24, Sune Fischer wrote:
>
>>On February 07, 2004 at 02:34:36, Kurt Utzinger wrote:
>>
>>
>>>>I am not familiar with the castling rules, or any other unique rules, of FRC. I
>>>>hope that doesn't make me a dummy. : )
>>>>
>>>>Bob D.
>>>
>>>
>>> The same can [sorry my FRC-friends]
>>> be said of me -:)
>>> Kurt
>>
>>They are the same as in normal chess, with a few more or less obvious
>>extensions.
>>
>>There must be a rook on each side of the king.
>>
>>In a king-side castle the white king goes to g1 and the king-side rook goes to
>>f1, in a queens-side castle the white king goes to c1 and the rook to d1.
>>
>>A king must not traverse any squares attacked by the opponent during the castle
>>and must not be in check after the castle.
>>
>>There must not be pieces between the castling king and rook and their
>>destination squares, except possibly for the rook involved in the castling.
>>
>>A king or rook move prior to castling will destroy castle rights.
>>
>>-S.
>
>In FRC the castling rule is somewhat modified and broadened, to allow for the
>possibility of either player castling either on or into his or her left side or
>on or into his or her right side of the board from any of these 960 starting
>positions. However, after 'a-side' castling, the king and rook find themselves
>on the usual squares: the king on c1 (c8) and the rook on d1 (d8); after
>'h-side' castling the king is on g1 (g8) and the rook on f1 (f8).
I'm not sure what you mean by this, are you correcting on some of what I wrote?
In that case I don't see any difference.
I don't like the word "modified" though, "generalized" is more accurate.
E.g. instead of saying "a king-side castle is only legal if squares e1,f1 and g1
aren't attacked and f1 and g1 must not be occupied..", we say "the squares the
king traverses must not be attacked and not occupied..".
That's not really a modification because they are still valid in describing the
castling rules for orthodox chess.
Rather it is a generalization because they fit a much larger group of positions.
>Sometimes castling looks odd in FRC: e.g. when your king is on e1 and a rook is
>on f1, you only have to move your king to g1 ('king-move-only' castling). All
>the other castling rules apply as in classical chess: e.g. no other piece is
>allowed to stand between the castling king and rook; one is not allowed to
>'castle out' of check.
Don't know what you mean by "looks odd", of course the king doesn't move in a
king-side/right-side castle if it is already on g1, then only the rooks moves.
One technicality is if the king is on f1 and moves to g1, in human chess you
can't tell if this is going to be a castle move or not until the rook is moved.
I think someone suggested that the king should be moved off the board in a
downwards arc to illustrate the intention to castle. Of course that's not an
issue in computer chess.
-S.
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