ok, i definitely think our signals are crossed here. In bughouse, it is really team loop chess the way you describe it, andreas?
I was referring to pure tandem chess in which wo teams of two players play the same game, which is only chess, no loop aspect involved at all. And, as ughiabu said, OTB it is usually played without consultation, that is, without one partner able to verbalize a plan to the other partner. If they can talk, I believe it is called consultation chess. Well, as with program use, there is no way to prevent consultation on BK, so there would be a gentleman's agreement not to consult in tandem, or else not regulate consultation at all. Either way it can't be enforced. So, actually, Caissus, I was advocating tandem chess because it is still linear. ie person a moves, then b, then c. No unusual waits. But in bughouse, you would have to figure out whether to synchronize play or not, but of course this could be easily programmed.

Both tandem and bughouse would be great additions. I would be happy to beta either one.