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🕸Fergus Duniho wrote on Tue, Aug 8, 2017 11:20 PM UTC:

Thanks for putting this up. You didn't mention that the Prince moves as a non-royal King, one space in any direction.

I played both sides with Zillions-of-Games to get the ambiguities in the rules clarified.

When I attacked a space vertically in front of a King with a Knight, it could not leap as a Knight to the space the Knight was actually attacking, but it could still move as a Knight to the other space. So it looks like the overpassed square applies only to orthogonal and diagonal moves, not to hippogonal moves. But looking at the code, I see that the King is given two paths for each hippogonal move. So I setup a position where both the Mao path and the Moa path of the King to a particular space are attacked, but the space itself is not attacked, and the King could not move to that space. So the rule is that a King may make a Knight leap if there is at least one two-step path to the space with an unattacked space, and this path may be like the move of a Mao (Chinese Chess Knight) or a Moa, which goes diagonally, then orthogonally outward.

Also, while a Camel is attacking a space near the White King, it's within a Knight's leap away from the King, nothing is attacking any space the King would have to pass over, and nothing is protecting the Camel, yet the King cannot capture it. So it looks like the King's two-space leap must be non-capturing. Looking at the code, this is confirmed. The King may make its skip move, as it is called in the code, only to an empty space.

Finally, I setup a stalemate position, and Zillions reported that it was a draw. So it looks like stalemate is a draw.


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