Stephen Tu, on 2020-June-05, 19:02, said:
I don't think so, not if partner is passing the 2H call. 3C ought to be just competitive IMO ("I don't want to sell out to 2H, I think we should have decent chances of making 3c but not particularly interested in anything higher"). Good hands should probably reopen double, or in some cases cue bid.
I guess this shows a difference in bidding philosophy. To me it is better to have the direct 3
♣ show an invite and use the alternative route (X or 2NT depending on agreements) for competitive or GF hands. It sounds like you prefer to play a value-showing double rather than a competitive double here, presumably without Lebensohl, in which case there is little choice but for the direct 3
♣ to be competitive.
Looking at the hands though it seems clear that this pair took the direct 3
♣ to show values rather than just being competitive. Other than Opener valuing their hand as a good weak NT, can you see any other reasonable justification for their 3
♠ continuation? I was, however, trying to be diplomatic and talk about the system solution (Support Doubles) rather than dwelling on South's part in the poor result.
AL78, on 2020-June-06, 02:44, said:
If West raises to 3H I would probably bid 4C, on the basis it is likely to be a 30 point pack. We still end up in the wrong place when partner corrects to 4S. The problem is it is difficult for me to bid in a way that tells partner I want to compete the part score, rather than I want to force to game, and I only have four spades. Something is not quite right somewhere if I can't bid the optimal contract in competition and play there.
If West raises to 3D I double as before, but would pass 3S, because 4S will be too high more often than not, and my DK might be useless. I accept I should trust partner to respond in a major with a good 6+ so should have passed 2S.
These rather highlight the point. Pressure bidding is effective and can be difficult to counter. In both cases, if West takes the pressure option you end up with a bad result, even looking at both hands. In this case, the way to get a good score is to X on #7 and Pass on #4. Whether those are really the percentage actions though, I cannot say. Maybe save the hands for a future poll thread...
AL78, on 2020-June-06, 02:50, said:
That doesn't make sense if that is really what partner was thinking. South has a horrible aces and spaces eight loser flat hand, which is not suitable to accept an invite.
If they are a regular partner it might be an idea to ask them what they were thinking. As above, if they were not evaluating their hand as a good weak NT then I have no idea what was in their head.
AL78, on 2020-June-06, 02:50, said:
I will investigate support doubles, and I believe doubles in coumpetition can be used in other situations to distinguish between game invitational and competing the part score (e.e. 1♥ (1♠) 2♥ (2♠) X vs 1♥ (1♠) 2♥ (2♠) 3♥.
1
♥ (1
♠) 2
♥ (2
♠) X is played as penalty but 1
♥ (1
♠) 2
♥ (2
♠) 3
♥ typically shows a
♠ invite as there is now no space for any other call below 3
♠ and that is needed for competitive purposes. The term "Maximal Double" is sometimes used for this.
AL78, on 2020-June-06, 05:19, said:
although now you mention it I can see the merit of giving up on a natural 2NT bid in competitive auctions, as it is almost never needed, and it would be better to go for a penalty if 2NT is making our way.
You get the point precisely. 2NT is very rarely the right call in a competitive auction and is extremely useful for a variety of other purposes that come up much more frequently. Therefore a number of very strong pairs have the agreement that 2NT is
always artificial in competition and those that do not will normally list the natural 2NT auctions as exceptions rather than the artificial ones.
If you are interested in this approach and also have a partner to work with on it then I would suggest googling "good/bad 2nt", which is the more common way of expressing the use of a Lebensohl-like 2NT in this type of auction. I would also very strongly recommend the book
Partnership Bidding at Bridge, which the authors have very kindly made available online for free. It is arguably still the best book on competitive bidding ever produced.