After 1§ (1¨) then
1§ - ( 1¨ ) – x
= 4-5©
1© = 4-5ª
1ª = tr®NT
1NT = nat
2§ = NF
2¨ = 6© wk or GF
2© = 6ª wk or GF
2ª = § inv.+
2NT = nat inv.
3§ =§ pre
3♦ = 6+♥ inv.
3© = 6+♠ inv
3ª = 0-1♦ splinter
After 1§ (1©) then
1§ - ( 1© ) –x = 4-5♠
1ª ® a) NT
b) ♦ NF
1NT = nat
2§ = nat
2¨ =
♦ inv.+
2© = 6+ª wk or GF
2ª = §inv.+
2NT = nat
3§ = 6+§ inv
3¨ = 6+¨ inv
3© = 6+♠ inv
3ª = 0-1♥ splinter
After 1¨ (1©) then
x = ª transfer (with as few as 4 cards), 1ª = NT transfer (responder may not intend to
play NT)
1NT Natural
After 1§ (1¨) then
2¨ = 6 card heart suit, 2©= six card spade suit 2ª = limit raise in §
After 1§ (1©)
2© = six card spade suit, 2ª = limit raise in §
After 1¨ (1©) then
2© = six card spade suit, 2ª = limit raise in ¨