Each party has a partner, and when three cards are dealt to each, one
of the players gives his partner his best card, and throws the other
two face downwards on the table: the dealer is at liberty to do the
same to his partner, and _vice versa_. The two who have received their
partners' cards play the game, previously discarding their worst card
for the one received from their partners. The game then proceeds as
at two-handed Put.