Jump raise – preemptive Two types of Splinter bids 1♥ - 3♠ = any shortage, 9–12 HCP (then 3NT asks shortage) 1♠ - 3NT = any shortage, 9–12 HCP (then 4♣ asks shortage) 1♥ - 3NT = spade shortage, 12–16 HCP 1♥/1♠ - 4♣, 4♦, 4♥ (after 1♠) = bid shortage, 12–16 HCP Drury-fit by a passed hand 2 of the bid major is the weakest rebid. Jump shift by a passed hand – invitational (9–11 HCP) 1NT opening 15–17 HCP Stayman 2♣ Opener's 2♥ does not deny four spades. Responder's subsequent bidding is natural: forcing at the 3-level, non-forcing at the 2-level. Also: 1NT - 2♣; 2♦ - 2♠ = invitational (7–9 HCP), 5 spades, 4 hearts, and 1NT - 2♣; 2♥/2♠ - 3♦/3♥ = transfer, agrees Opener's suit, GF Jacoby transfers 2♦/2♥ Transfer to hearts (2♦) does not deny five spades. Responder's new suit at the 3-level forces to game. Also: 1NT - 2♦; 2♥ - 2♠ forces to 3♥ (8+ HCP) 2♠ response – transfer for clubs. Opener may choose between a positive 2NT, and a negative 3♣. Responder may continue by showing shortage. 2NT response – limit 3♣ response – transfer to diamonds, weak or strong Opener is obliged to bid 3♦. Responder may continue by showing shortage. 3♦ – natural, inviting 3♥/3♠ – 5431 convention: GF, both minors: at least 5-4, shortage in the bid suit 2♣ opening Precision: 5 clubs and a 4−card major, or 6 clubs, 11–14 HCP 2♦ response – relay, forcing to 3♣. Opener shows a 4-card suit (3♦ shows extras) or makes a choice between 2NT and 3♣ with long clubs. 2♥/2♠ response – not forcing, good 5-card suit (7–11 HCP) 2NT response – weak support in clubs or GF two-suiter. Puppet to 3♣. Opener must bid 3♣. Responder either passes or shows his suits: 3♦ = diamonds and hearts, 3♥ = hearts and spades 3♠ = spades and diamonds. 3♣ response – limit raise (invitational) 3♦/3♥/3♠ response – limit, good 6-card suit 2♦ opening Weak two in a major (limited Multi), 6+ cards, 6–11 HCP. 2♥/2♠/3♥/3♠ response – pass or correct 2NT – relay, forcing to 3 of the major Opener bids: 3♣ = good opening, 3♦ relays and 3♥ shows spades. 3♠ shows hearts. 3♦ = hearts, minimum opening 3♥ = spades, minimum opening 3♣ response – GF, any one-suited hand, puppet to 3♦. 3♦ – game-invitational with