Responses and Rebids
1NT ---
2♣* : Stayman.
2♦ : No 4-card major.
2♥ : ♥ 5, inv.
2♠ : ♠ 5, inv.
2NT : Inv, has a 4M, bal.
3♣/♦ : 5+ suit, GF.
3♥ : ♠ 5♥ 4, GF.
3♠ : ♥ 5♠ 4, GF.
2♥ : 4 hearts, does not deny ♠ 4
2♠ : ♠5, inv.
2NT : inv, ♠ 4.
3♠ : ♥ slam interest
2♠ : 4 spades.
2NT : inv, ♥ 4
3♥ : ♠ slam interest
2♦/♥* : Transfers to Majors (5+ cards).
After transfer acceptance...
New suit : Natural 4+, GF.
Jump in major : 6+ suit, inv.
2NT : Balanced inv.
2♠* : Transfer to 3♣, weak or with slam interest
After transfer acceptance...
3♦ : minors 5-5+, slam interest
3♥ : ♣ 6+, ♥ singleton/void
3♠ : ♣ 6+, ♠ singleton/void
3NT : ♣ 6+, balanced
2NT : Inv, no 4-Major.
3♣* : Transfer to 3♦, weak or with slam interest
After transfer acceptance...
3♥ : ♦ 6+, ♥ singleton/void
3♠ : ♦ 6+, ♠ singleton/void
3NT : ♦ 6+, balanced
3♦ : ♦ 6+, inv
3♥/♠* : Splinter, 5-4 minors
3NT : To play.
4♣* : Two majors 5-5+, no slam interest
4♦/♥* : Texas Transfers.
4♠* : Two minors 5-5+, no slam interest
4NT : Quantitative Inv.