playBunny: Thanks! I tried to trick BK by typing the double-move into the URL, but it did not execute the move, so it is explicitly checking the intermediate positions for legality. As that situation would be quite rare, maybe even most real-live players have never encountered it and wouldn't know the rule exactly. I guess it was inconvenient, but it will not make me lose the game. I just found it interesting.
(hide) You can use some of the simpler HTML on your messages or, if you're a paying member, can also use the Rich Text Editor. (pauloaguia) (show all tips)