Each game fork has its own rules. Additional forks may be possible if the particular game would allow it at the time. Reunifications must be legal in all affected forks.
[lurker] You seem to have a very good grasp of it then. I meant, of course, the cherrywood cupboard next to the door in the emulsification quality evaluation department on the 3rd floor.
INJ] Correctamundo, though on reflection perhaps hiding it behind the pickle jar was a little unfair. Another round, or should we have a *cough* quick game of something else?
In the meantime, we could all go to a concert: how about this performance of a modern classic. That'll keep us distracted until, er, the year 2639. Time enough for someone to complete a move?