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Fast Chess Contradance. Solitaire chess puzzle: four white and four black pieces must change places without attacking.[All Comments] [Add Comment or Rating]

Tony Quintanilla wrote on Mon, Nov 29, 2004 03:53 AM UTC:

The editors received the following question by e-mail:

Hello,
 
I am enjoying your Chess Variants website very much.  I have a question
about the rules of Chess Contradance and Fast Chess Contradance, and I
hope you can help me.
 
Is a piece forbidden from (a) moving onto a square where it threatens
(actively) a piece of the other color, OR (b) moving onto a square where
it is threatened (passively) by a piece of the other color, OR (c) both?
 
The rules for Chess Contradance sound like the passive rule (b), but the
rules for Fast Chess Contradance sound like the active rule (a).  Or
maybe
they are both correct, and the answer is (c)?
 
Thank you very much for your time and attention!
 
Steve Schoenig