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.
(peida) Kui Sa tahad kindla mängutasemega vastast, siis võid uue partii loomisel määrata tema BKR vahemiku. Siis teised mängijad ei näe ega saa seda kutset vastu võtta. (Katechka) (näita kõiki vihjeid)