 Depending on the bidding system, a reverse by opener usually shows a minimum of 16 points or a five-loser hand and at least five cards in the first bid suit.Opener's reverse may face a weak responding hand with which responder may have intended (over a simple suit rebid) to rebid his own suit or taken a preference to opener's first suit at the two level.Opener's reverse still allows responder to rebid his suit at the two level, but a preference to opener's first suit must be at the three level.