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Marseillais Chess. Move twice per turn. (8x8, Cells: 64) (Recognized!)[All Comments] [Add Comment or Rating]
🕸Fergus Duniho wrote on Wed, Feb 26, 2003 03:26 AM UTC:
I'm thinking the two moves should be of different move-types. The second
move can first check whether the enemy King is in check.

For example, preceed each move of the second move-type with (no-check?).

Link all spaces on board with next direction.

(define no-check? mark a1 (while (or (not-piece? King) (not-enemy?)) next)
(verify not-defended) back)

This searches for the enemy King's position, verifies whether its
position is defended, which means the current player is threatening that
space, then returns to the position of the piece moving.