First things first. My info on this hand comes from the opponents bidding, so I need to find out as much as I can about what their bids meant. It sounds like the 2
♣ opener has a hand similar to a Michaels cue bid - usually 5-5, but sometimes 4-5 or even 5-4 but never 4-4 in the majors. If this is the case, then what does 3
♠ mean? Is it a blocking bid or is it 'constructive', possibly invitational to game? What would a 2
♦ or 2NT response have meant? If 3
♠ invited, then odds on partner's having one or more of the three key cards -
♣ ace,
♥ ace or
♦ king is reduced. So, my first move would be to query first about LHO's and then about RHO's bids.
My hand is a brick for 9 tricks in clubs, and it will take 10 tricks opposite some hands with no honours at all. The problem is two natural heart losers or a heart ruff, i.e. when partner has three or four small hearts or less than three clubs for me to ruff with. According to probability calculations, this will occur about 50% of the time.
If partner has no key cards, we have 9 or 10 tricks, and bidding 4
♣ right now is enough. They might even make 4
♠ (in which case 5
♣ doubled down one may be a good save), but everything would have to be perfect for both them and us for this to be the case.
If partner has one key card, we ought to have a better than even shot at making 5
♣ - almost 100% if it is the
♥ ace or the
♦ king + the
♦ queen, and around 50-50 in the remaining cases (ace third of clubs and short hearts are very good, long hearts w/o the ten are very bad). Bidding 4
♣ now likely won't get us to 5
♣ (partner will probably pass); double should, and 5
♣ does it perforce.
If partner has two key cards, she ought to raise 4
♣ to 5
♣.
Soooo, what is the percentage bid? Double, 4
♣ or 5
♣???
Against good players who consider 3
♠ to be 'a constructive raise' (i.e. typically four spades and 5 to 10 HCP), I would lean toward 4
♣. Partner owes me a raise to five with an ace + the
♦ king (or two aces) and three trumps, or with a LAW hand with four or five clubs. Opposite these hands 5
♣ should be a good spot.
I only lose vis a vis an immediate 5
♣ bid on the hands where pard has one key card and 5
♣ makes (50-60% of such cases), and those few hands where she has no key cards, the opponents bid and can make 4
♠, and 5
♣ is only down one.
Admittedly, 4
♣ doesn't put max pressure on the opponents, but I AM looking at half the high cards in the deck, so how important can preemption be? If this does turn out to be a wild melee where we have 10 or 11 clubs, and they have 10 ro 11 spades; the fun is just starting and 4
♣ is a good first step in terms of bringing partner into the picture.
If the 3
♠ bid was a more of a bar bid based on spade length and little else, then, I think, 5
♣ may be the best call. Chances of catching partner with one or more key cards is better, and it does force the opponents make the last decision - always a good idea. Bidding 5
♣ IS taking a stand and masterminding the hand, but why not?
I don't see the logic of making a double here. Of course, it could work out; but bidding room is scarce, I certainly don't want to play in diamonds, and my hand is vastly more suited to play the hand than to defend. It has four quick tricks, but ten playing tricks. I need to bid my suit.