Single Comment

Probably, it isn't even necessary to add (White Displacement) in the turn-order. You can use (add-partial Displacement) in the Displacer's move, which allows your Displacer to make an extra Displacement-move. The turn-order should be (White Regular) (Black Regular). The Displacement-move should just move a piece to be displaced to the desired position, using from. Don't forget the (verify (or (not-piece? Traveler) (on-board? s))). The question is how you want to pass this move. You can do something with pass partial options. If that doesn't workt just add a move ((set-attribute Monkey false) add) (a move of which Zillions think it is something, but in fact isn't.