Nabooba, on 2014-May-13, 04:35, said:
There are a number of points here. If there had been no intervention, what would you bid? 2D I guess. So now you make the same bid one level higher. This shows that the 2S bid cant be weak but has to be forcing to game with one exception and that is responder rebidding his suit. With a lesser hand you would have to make a negative double.
Are you suggesting that a 3
♦bid should show 4+ cards in LHO's suit and undefined strength? A novel approach.
Nabooba, on 2014-May-13, 04:35, said:
Another method is to play a system which one poster above described. Responders lower ranking suits are forcing, and higher ranking suits are non forcing. This is not uncommon and works well.
Yes, there's a decent case for playing 'disturbed' 2M bids as non-forcing, but that treatment also has its own weaknesses.
Nabooba, on 2014-May-13, 04:35, said:
No poster has yet responded to my claim that if you make a wide ranging 2NT rebid the auction is virtually forced to 4NT if opener has 16 or 17.
Why? Opener needs at least a king above minimum to force to game, so 3NT or cue bidding would already imply these sort of values.