paulg, on 2020-November-11, 11:06, said:
"We play Acol, 5-card majors, a short club and a strong no trump"
It is hard to keep a straight face.
The first Acol book I read taught a system that was 5 card majors, 16-18 NT. The original Acol used a 15-17 1NT Vulnerable and allowed 1
♣ on a 3 card suit. It is not so absurd as you seem to think.
helene_t, on 2020-November-11, 14:49, said:
So maybe the conclusion is that extended Stayman was replaced by transfers?
Replaced is the wrong term as they can also work together beautifully...
Vampyr, on 2020-November-11, 06:26, said:
My partner said that the actual correct bid in his system (which he called Stayman-in-doubt, which is something else entirely) was 3♦, but he didn’t know whether I thought we were playing this convention, so bid 3♣ instead for some unknown reason.
In any case, is this really an integral part of decades-old Acol?
SID was never mainstream Acol without agreement but it was for a while quite a popular convention. Extended Stayman on the other hand was often regarded as the default meaning for 1NT - 2
♣; 2
♦ - 3
♦ in Acol. It was included in the Blue Book, which was generally seen as the Acol Bible during the 70s and 80s. Not that it is only used in decades-old NT structures either, both are
still part of my response structures for both ordinary and Puppet Stayman:-
Ordinary:-
--
1NT - 2
♣; 2
♦ - 3
♣ = FG, at least 5-4 majors (effectively replaces Smolen)
1NT - 2
♣; 2
♥ - 3
♦ = FG 4+ hearts, either 3433 or slam interest
1NT - 2
♣; 2
♠ - 3
♥ = FG 4+ spades, either 4333 or slam interest
--
Puppet:-
--
1NT - 2
♣; 2
♦ - 3
♣ = FG, at least 4-4 majors (if 3
♦, 3M next is delayed Smolen)
1NT - 2
♣; 2
♦ - 2
♥; 2
♠ - 3
♥ = FG 4+ spades, either 4333 or slam interest
--
Douglas43, on 2020-November-11, 11:51, said:
but do have one partner who plays extended stayman (he likes to know that a transfer to spades followed by 3H shows precisely four hearts.)
Ironically the structures above are designed to achieve the opposite effect, so that 1NT - 2
♥; 2
♠ - 3
♥ is in both 5-5 or better majors with invitational strength.