Posted 2011-December-23, 17:12
As some of you have figured out, the other alternative to partner having 7 hearts is that partner has 5 hearts. For some reason it is easy to mentally dismiss this possibility since it gives LHO 5 hearts, but there is no reason LHO could no have 5 hearts and 6 diamonds.
I will assume that partner would lead a club if he had one. Even if he had a natural trump trick he'd rather lead our suit since it's the safest option.
This means partner is either 6520, or 4720. With 4720 w/r at MP, many people would preempt something in first seat (especially given that partner has a heart honor). With 6520, partner would almost always pass. Mike777 rules out partner being 6520 because he would lead "a low spade or a high heart." I don't understand that. Leading a low heart showed an odd number of hearts, that what he has. When you have a void, your leads don't transform into suit preference. In fact, on this hand, when you fail to lead a club your partner will probably figure out you're void anyways. Just leading your systemic card is important.
Now, whether partner would lead a spade or a heart is debatable, but personally I think leading from a king when partner has preempted in a side suit will give up a trick extremely often, and leading from QT would almost always be preferable.
It is possible LHO would have bid differently with 0562, but his hand is probably pretty weak (at best --- Kxxxx AKQJxx xx), he has 2 small in our suit, his partner is a passed hand, and we don't even know if he had leaping michaels available if he wanted to bid it (judging by the quality of RHOs pass of 3D, they probably don't even play leaping michaels).
Already, it looks to me that 6520 is much more likely for partner than 4720 just from the bidding. Now, what can we make of LHO playing a heart at trick 2? This play is extremely weird if LHO has Kxx of hearts. Why wouldn't he just play trumps, he only has 1 heart loser to ruff. Bad players may be bad, but they still make plays for a reason, and it is very counter intuitive to just play a heart at trick 2 when you could be pulling trumps, ESPECIALLY with our partner having a club void looming.
What about if LHO had Kxxxx of hearts? A heart play now feels much more natural, after all they have 3 heart losers to ruff. Mike777 suggests they could just pull trumps, but then they have to lose all the hearts. On the surface they don't really lose much by playing a heart immediately, if we ruff, we have ruffed their loser. Now, maybe they did not analyze that deeply, but I feel really confident that playing a heart here is much more indicitave of a declarer with 3 heart losers than 1.
Say declarer has --- Kxxxx AKQJxx xx. What can we do anyways? Well if we ruff and play a club, our partner ruffs, but declarer ruffs the spade return and pulls trumps in 1 round, and can ruff his 2 other heart losers for making 5. If we pitch, declarer will take 2 hearts, 6 diamonds, 1 club and 1 ruff for making 4. BTW, if this is declarers hand, everything that has happened so far is quite normal imo, it is the only layout that makes sense (partner didn't open in first seat, LHO overcalled 3D, partner led a heart, LHO continued hearts).
If declarers diamonds are slightly less good like --- Kxxxx AKQxxx xx or -- Kxxxx AKJxxx xx then declarers line is not clear but it is not clearly wrong either. Playing 2 rounds of trumps is not great on 3-1 trumps, however it is good when I have Hx of trumps to prevent us from scoring 4 ruffs with 10 top tricks available for declarer. That being said, if declarer has chosen to play this way with one of these hands, ruffing and playing a club will be fatal for the same reason, declarer can pull trumps in 1 round and ruff 2 hearts for making five. Again, we would need to pitch to hold it to 4.
At the table I ruffed without even thinking, when I saw partners low heart I placed them with 4720, decided they didn't preempt because of the side 4 card major, and did not even stop to reconsider when declarer played a heart at trick 2. I was on board with giving partner 2 club ruffs via my SA entry. There is some cognitive bias in play here that causes people (including me) to eliminate the possiblity of partner having only 5 hearts even when it makes more sense, because it would give LHO 5 hearts, even though there is no inherent reason LHO cannot have 5 hearts.