TWO4BRIDGE, on 2012-May-08, 13:51, said:
@ Zel
Does this sequence qualify for your other system where the 4D bid ( over 3NT ) now "asks" Opener :
That would not work here as 4
♦ does not promise a fit. The compromise convention is for situations where you have to choose between 4m being a slam try with cue bids to follow or as Minorwood. The idea is to achieve a little of both, both the slam try and the key cards, while not catering to everything - no cue bids and key cards are 1-2 steps higher than with Minorwood. Effectively, this is primarily for auctions where the minor suit agreement occurs at the 4 level.
Thus if 4
♦ was setting diamonds as trumps then this would be on. I suppose it would be possible to adjust the scheme so that: 4
♥ = fit, decline slam try; 4
♠ = fit, accept, 1 or 4; 4NT = no fit; 5
♣ = fit, accept, 0 or 3; 5
♦♥ = fit, accept, 2 or 5. This is not something I have tried though and it might be dangerous for what is sometimes your only forward-going move in a minor committing you to slam opposite 2 key cards plus the trump queen. Clearly this kind of situation turns up less often in a relay-based system than natural though. I generally try to avoid auctions where I am still scrabbling round for a fit at the 4 level!