yunling Posted April 16, 2021 Report Share Posted April 16, 2021 A few systems use 1S-2D as hearts so 1S-2H includes GF 5+D (some will put other hand types in it which make it more difficult to continue).e.g. Ambra uses a fairly "normal" follow up so 2S is minimum, 2N/3x is natural and max but opener can't show 5-5/6-4 majors below 3NT, which is losing a lot of major information compared to traditional systems. Anyone has a good continuation of this auction? Quote Link to comment Share on other sites More sharing options...
nullve Posted April 16, 2021 Report Share Posted April 16, 2021 The continuation in Il sistema Bocchi-Duboin looks quite good. Quote Link to comment Share on other sites More sharing options...
kreivi68 Posted April 17, 2021 Report Share Posted April 17, 2021 I haven't played such a system, but this comes to my mind: 1♠-2♥: 2♠ = min2NT = extras, majors 5=4/6=43♣ = natural, extras3♦= 3+♦ support (including 18-19 balanced)3♥ = 5♠+5♥, min/max3♠ = 6+♠, self-sufficient suit3NT = 5=3=2=3, 18-19 Quote Link to comment Share on other sites More sharing options...
glen Posted April 18, 2021 Report Share Posted April 18, 2021 The continuation in Il sistema Bocchi-Duboin looks quite good.This would be: 2H = 5+D GF (or 6+D invite)--- 2S = 5+S with either 4+C or 4+H------- 2N = asks----------- 3C = 5+S-4+C--------------- 3D = asks------------------- 3H = 2524/3514 11-15------------------- 3S = 2524/3514 16+------------------- 3N = 5S-5C 11-15------------------- 4C = 5S-5C 16+------------------- 4D = 6S-4C 11-15------------------- 4H = 6S-4C 16+----------- 3D = 5S-3D--------------- 3H = asks------------------- 3S = 4C 11+------------------- 3N = 4H 11-15------------------- 4C = 4H 16+----------- 3H = 5422/5413 11-15----------- 3S = 5422/5413 16+----------- 3N = 5S-5H 11-15----------- 4C = 5S-5H 16+----------- 4D = 6S-4H 11-15----------- 4H = 6S-4H 16+------- 3C = 6+D 9-11 (if you play can be an invite)------- 3D = 6+D GF--- 2N = 1-suiter without 3+D------- 3C = asks----------- 3D = 6+S UNBAL----------- 3H = 6+S BAL----------- 3S = 5323 11-14----------- 3N = 5323 15-17----------- 4C/D/H = 6+S, shortness----------- 4N = 5323 18-19------- 3D = 6D 9-11 (if you play invite)------- 3H = 6+D GF--- 3C = 5S-4D 11+--- 3D = 5S-5D or 6S-4+D--- 3H = 5S-3D-(3-2)--- 3S = 6S-3D 11-14--- 3N = 6S-3D 15-17--- 4C = 6S-3D 18+ 1 Quote Link to comment Share on other sites More sharing options...
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