Tuesday, March 31, 2009

Decisions, decisions

This hand from a bbo match presented a number of interesting decisions. Spoilers are embedded so you may want to cover things up as you go…or just enjoy the story.

Neither vul, partner dealt and bid 3h. Second hand doubled. I held:

♠ K972
♥ Q
♦ AJ832
♣ AJ9

What is your plan?

(a) bid 4h
(b) pass planning to double anything
(c) pass planning to double some things, bid over others
(d) xx inviting partner’s input



I chose (b), with much less than 100% confidence, on the basis that game wasn’t certain and +300 seemed like a reasonable expectation, with a sufficiently small chance of -530. I would expect substantial expert support for (a). I don’t like (d) because partner is unlikely to be able to help you, and you might help the opponents.

Lefty bid 3S which I doubled. RHO ran to 4D, doubled more happily. I led HQ and visible was

J865
A95
95
T765

K972
Q
AJ832
AJ9

Dummy won HA, 2 from partner (udca, standard suit-pref), and ran D9, partner following with the 7. Your plan?

I think ducking this to get a signal from partner on the next trick is best, but I won and tried a spade – small, ten, queen. At tricks 4 and 5 I ducked the DT and DQ, partner pitching hearts up the line. Now declarer played A and a spade, and I was in with 6 tricks to go, now holding 9 – A8 AJ9 with J 9 – T765 in dummy. Your move?



Partner seems to be 2-7-1-3. I think he should certainly not pitch this way with 3 small clubs, so he has Kxx or Qxx. Perhaps Qxx is more likely, because he might have pitched a small one from Kxx. Do you see how to guarantee 5 of the last 6, for down 4, when partner has Qxx?


The (actual) ending:
Dummy: J 9 – T765
Me: 9 – A8 AJ9 Partner: -- KJT -- Q32
Declarer: -- 7 K6 K84



The CJ to create an entry to partner is a nice try, but declarer can counter by ducking. You must play A and a diamond, giving up your trump trick – partner must be careful to pitch one club, keeping Qx with two heart winners, to avoid a throw-in, and declarer is dead. (After CJ ducked, do you get a second chance to play diamonds? Interestingly, no – you have stripped an idle card from partner and he is strip-squeezed.)

At the table I fell from grace and led the C9. I could say I was playing partner for CK, but that doesn't hold up -- you can't get 1100 anyway so your play is irrelevant. Getting 800 when he has CQ is clearly the issue – the fact is if I had thought of the right play, I would have done it. It went 9,T,Q,K and I was endplayed again with a club for down 3.

Declarer had AQ4 73 KQT64 K84. Final result: +500, win 2 against -420 (3h-x-4h at the other table.) Win 9 would have been so much nicer.

Footnote: More double-dummy madness: suppose declarer gives you back the trump trick, playing DK under the A. Partner must adjust his discards, keeping 3 clubs and one heart when you cash D8, then you must exit CJ. Going back, the order of partner’s discards in the main variation must be club last.

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