Leapers can leap over a hole; they never sense any othe square than thir destination. Lame leapers cannot.
Hoppers cannot hop over holes, which are treated as off-board squares. But you could define, say, [oR-fmR] to get a piece that can hop over a hole. Iron pieces are pieces, so hoppers can hop over them. Unless the captureMatrix would forbid it.
There is currently no restriction possible on U. Conceivable would be a range, or directional modifiers that would be interpreted according to the K or oblique system, depending on the destination.
Leapers can leap over a hole; they never sense any othe square than thir destination. Lame leapers cannot.
Hoppers cannot hop over holes, which are treated as off-board squares. But you could define, say, [oR-fmR] to get a piece that can hop over a hole. Iron pieces are pieces, so hoppers can hop over them. Unless the captureMatrix would forbid it.
There is currently no restriction possible on U. Conceivable would be a range, or directional modifiers that would be interpreted according to the K or oblique system, depending on the destination.