keithhus, on 2015-April-30, 05:58, said:
because of some recent experiences, I am thinking of advising my partners that 4 Clubs is always gerber and 4 NT is always Blackwood, regardless of previous bids. Bearing in mind the level I am playing at, do you think this is a sensible approach? Thanks
I would suggest the following starting point with a strange partner:
1. Any 4NT bid over a suit bid by partner is Blackwood.
2. Any 4NT bid over any actual NT bid by partner is quantitative.
3. Any 4
♣ bid over any actual NT bid is Gerber. (By "actual NT" I mean a NT bid that suggests partner wants to play in NT, i.e., not Unusual NT. Another example would be 2
♣ - 2NT, if you use 2
♥ as a negative response and 2NT as a response showing a heart suit. There, although responder says "NT" he is not suggesting that you play in NT but showing a heart suit, i.e, the "actual" bid is hearts - thus, a 4
♣ rebid would be natural and a 4NT rebid would be Blackwood.)
4. A 4NT bid over a suit establishes that suit as trump for purposes of RKC, unless another suit has been bid and raised. You have to think ahead here, especially if you play Roman Key Card. A good auction to discuss with partner might be 2
♥ - 2NT (for feature, say) - 3
♠ - 4NT. This is Blackwood under Rule #1, but would presumably establish hearts as trumps, since responder could have forced with 2
♠ under most systems.
You will lose some natural bids with these rules, but unless partner is someone I play with a LOT, and I am sure we are on the same page, I'd rather lose the occasional 4
♣ bid than get into a ridiculous slam sequence where one person thinks we are bidding number of Aces, and the other that we are bidding suits or cue bids.
Another lost bid, here, would be the 2
♣ - 2NT (heart suit) - 4NT sequence, where opener might very well want to bid a quantitative 4NT. I am going to tell you, unless your bidding is fairly advanced, being rock-solid on whether a bid is ace-asking is worth giving up the quantitative 4NT over a suit bid.