furbster: I joined in the discussion on that last night in Tounaments. I think something needs clarifying in the Rules to be honest.
The question is, Is it game over ? or should there be a pass ?
The Rules state, that a player can not make any legal move.
Now, it is the end of the game anyway, BUT you could still move and win so it would not of been a draw. If this had happened half way through the game (i.e. your opponent can not move) in theory this should be a pass, as such, because on your next move you could easily free a space by moving one of your pieces should you wish to do so.