According to the rules, a piece cannot move back to the square it moved from on the previous move. As I understand it, there was a bug that allowed such moves in certain circumstances. Has that bug been fixed?
Celticjim: Thanks for your response. Although I don't care for the game graphics or move tracking here, it's the bug that causes me the greatest reluctance to play here. There are many very good espionage players here I would challenge if the bug were resolved.
Dark Prince: No worries, it will have been fixed with the introduction of BK 3.0… which is expected to take place very soon… or has been for the past two years…