Niemeyer
The idea is that opener (almost) always plays, but responder is leader of the auction. It will set the right contract (game) in 95% of all cases.
General approach: Transfers, and 3
as asking for 4 or 5 card majors.
I hope this in ACBL-allowed. It has lots of alerts (I think all calls of responder are alertable, and most of the other calls) but it's not that difficult to remember.
3
See below (That's the major part)
3
Transfer to hearts
- 3
accepting - 3NT 2 hearts, 5 spades
- 4
retransfer to hearts - 4
transfer to spades
- 4
- other cue bid, nice fit, maybe slam?
3
Transfer to Spades
- 3
accepting - 3NT 2 spades, 5 hearts
- 4
transfer to hearts - 4
retransfer to spades
- 4
3
Transfer to Clubs (slam interest)
3NT shows 5 Spades + 4 Hearts. NON FORCING
4
To play
4
To play
4
Transfer to Diamonds (slam interest)
4
shows 5
+ 5
. Opener places contract (1)
4
(I forgot)
4
Ace asking bid
4NT 6NT-try
5NT 7NT-try
3
Asks for 4 or 5 card Major
- 3N at most 3-3 in Majors
- 4
Minor suit stayman
- 4
- 3
5card
- 3
general Slam try, start cueing - 3NT to play
- 4
to play
- 3
- 4
/D long suit, NO fit - 3
5card
- 3NT to play
- 4
to play - 4
general slam try
- 4
/
long suit, NO fit - 3
4card
and/or
- 3
looking for Spade fit
- 3NT Sorry, I had 4 Hearts
- 3S looking for Heart fit
- 3NT Sorry, I had 4 Spades
- 4
"Name your suit" - 4
Minor suit stayman (?) - 3NT To play (because 3NT directly is conventional)
- 3
The only problems are the 5422 hands, with 5-4 Major or 5-4 Minor.
5-4 Major: there is no way to indicate this: the 4-4 fit will be missed. Solution: either open 2
(GF) or 1H/S.
2-2 Major: You'll have problems when pd shows 5-5 with 4D. But it's not that bad.