Puppet Stayman
Used by responder with at least invitational values to discover whether partner's 2NT bid may consist of a 5 card major suit.
2N - 3♣:
3♦ - at least one 4M;
3♥ - 4♠;
3♠ - 4♥;
4♣ - both majors, slam try, total ~28+ HCP;
4♦ - both majors, weak,
3♥ - 5♥;
3♠ - 5♠;
3N - no 4M, no 5M.
R E F E R E N C E S