Posted 2012-April-16, 13:38
So many concepts going on here.
When considering what to bid, one good rule of thumb if it is debatable is to predict a likely auction. Here, I think you have a fairly good shot at getting spade agreement at the two-;evel (if your methods alklow for this) for two reasons. First, with four trumps there is a reduced likelihood of partner rebidding spades, as that would require the existence of a 10-card net fit. Second, with a stiff diamond, the odds heavily favor a 2♦ rebid, which would be tremendous. Third, as your bid is clubs and as his major is spades, he also have the opportunity for a 2♥ rebid, or ideally you even play that Opener's 2♦ rebid is "diamonds or balanced" for this very reason. Thus, the auction is heavily favorite to run 1♠-2♣-2X-2♠, with spade agreement at the two-level. Contrast this with almost the exact hand but partner opening 1♥ and your minors reversed (long diamonds, stiff club). Now, after the start 1♥-2♦, you are assured that the auction will not start with agreement until at least 3♥, which cramps the cuebidding space.
(Aside -- this concern actually argues for a specialized 2NT call to show a fit with some difficult-to-describe pattern. For example, one might consider making a 2NT call show a fit, GF, and length in the suit immediately below Opener's suit. In other words, 1S-P-2NT as spades and five hearts; 1♥-P-2NT as hearts with five diamonds. But, I digress...)
The second concern is descriptive. A good 5-card suit that is not solid (missing the King or Queen especially) argues for cuebidding (if you can show missing honors like the Queen) or for description at least (if your calls will show where you live). I would much rather encourage an auction where partner can even cue the club Queen, or will know that his club Queen is working than an auction where the club situation remains a mystery, like with Jacoby 2NT.
The direct splinter option is not terrible, if this fits within the range for your splinters. The ability to make a LTTC call after a 4♦ splinter is not unremarkable, either. But, the imbalance in the rounded suits is remarkable and argues against a Splinter. Much better to hope for a delayed splinter, such as 1♠-2♣-2♠-4♦ or something similar.
(Again, there is something to be said, as an aside, for a direct splinter implying length in the one-under suit, as that is the difficult holding, but this argues against a splinter here. Make the pattern 3451, and a splinter in support of hearts has that advantage of assisting a difficult pattern.)
Much of the analysis, however, is driven by your agreements and how the likely auction will continue. For instance, as I mentioned earlier, you are much better placed if Opener can rebid 2♦ with balanced hands, if you can agree the major with a 2♥ rebid next, if cues are used rather than pattern bids, etc.
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