referred to as non-forcing Stayman, in the sequence: 1NT – 2; 2 – 2 responder's simple rebid of a major suit is invitational, showing 8-9 points and a 5-card spade suit. In the forcing Stayman variant, the bid is one-round forcing. In the original Precision Club system, forcing and non-forcing Stayman are differentiated in the start: 2 by responder shows only invitational values (and the continuation is the same as in basic Stayman), while 2 is forcing to game (responder bids 2NT without majors). Non Promissory Game Forcing Stayman This allows responder to find exact shape of 1NT opener. Developed for use with weak 1 NT opening. Relay bids over opener's rebids of 2, 2, 2, 2NT, 3 allow shape to be defined further if attempting to find 5-3 major fits. Advantages are responder's shape, which may be any distribution, is undisclosed, and responder is able to locate suit shortage holdings not suitable for no trumps. 1NT – 2♣ 2 5,3,3,2 shape with 5 diamonds 2 4,4,3,2 shape with 4 hearts 2 4,4,3,2 shape with 4 spades (denies 4 hearts) 2NT 4,4,3,2 shape with both 4 card minors 3♣ 5,3,3,2 shape with 5 clubs 3 4,3,3,3 shape with 4 diamonds 3 4,3,3,3 shape with 4 hearts 3 4,3,3,3 shape with 4 spades 3NT 4,3,3,3 shape with 4 clubs Developed to be used in combination with following other responses to 1NT: 2, 2 Jacoby transfers to majors; 2 range finder/transfer to minors (opener's rebids: 2NT 12-13 HCP, 3 14 HCP. Responder passes or corrects to 3 or 3 sign off if weak. After opener's 3 rebid responder bids 3 to show 4 hearts or 3 to show 4 spades both game forcing. Responder's rebid of 3NT denies 4 card major); 2NT invitational hand with both 4 card majors (opener's rebids: no bid no 4 card major 12-13 HCP, 3 4 hearts 12-13 HCP, 3 4 spades 12-13 HCP, 3 4 hearts 14 HCP, 3 4 spades 14 HCP, 3NT 14 HCP no 4 card major). Disadvantage is that it tells the opponents the opener’s distribution. Four Card Major Non Promissory Relay Stayman This allows responder to find exact shape of 1NT opener that may only contain a four-card major. Developed for use with weak 1 NT opening. Relay bids over opener's rebids of 2, 2, 2 allow shape to be defined further if attempting to find 5-3 major fits. Advantages are