 Signals must be truthfully made, and instructions obeyed.A trick is spoilt if the highest card played by one side is matched in rank by the highest card played by one of the other.In case of a tie-winning trick played by two partners, whichever of them led to it first, leads two the next, and if neither of them two led, the trick is then spoilt just as if one of the tied cards were played by the other side.