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Defensive Problem

#1 User is offline   joshs 

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Posted 2007-September-18, 15:55

After the following auction, both white:

1H(partner)-2H(Michaels)-x(suggests defending)-P
P-2S-x-All Pass

You hold KJ7x xx Q9 AK98x

You lead the CA, and dummy comes down with:
9x KQxx JT QTxxx

Partner plays the lowest club spot and declarer follows. After thinking about it, you play another high club, and partner pitches and encouraging low heart,, you play a heart to the Q and ace, and partner returns a low trump (ok partner screwed up and didn't play a trump, but he should have) and declarer plays low and you win with the J.

How do you defend?

(How likely is it for partner to have a second spade that beats the 9, vs having the AK of diamonds, and are there any other cases that matter?)

Note: Partner is marked with 2641 shape.
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#2 User is offline   FrancesHinden 

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Posted 2007-September-19, 11:39

I think partner has the AK of diamonds and poor spades for two reasons:

i) he has an opening bid which seems to be made up of the AJ of hearts, a top diamond honour and either the other top diamond honour or a spade honour. With Ax of spades he would have played ace and a second spade, so he'd need to have exactly Qx, as opposite to all the various xx holdings he can have.

ii) with a poor diamond holding (one of the top two honours) and a trump higher than dummy, he might not have played a trump, he might have tried for some sort of cross-ruffing idea by playing a heart back. Planning for a potential trump promotion in due course. Partner doesn't know you have the DQ (you've got enough stuff not to need it); for all he knows declarer wants to draw trumps and knock out his one diamond honour, so it's much less tempting to try and draw trumps for him.
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#3 User is offline   FrancesHinden 

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Posted 2007-September-22, 12:29

well?
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#4 User is offline   joshs 

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Posted 2007-September-24, 13:21

Well in actuality partner returned a heart, which was the wrong defense. I was planning on returning the DQ and a Diamond (playing partner for the AK) so as to get another heart thru, but I didn't get the chance. But this play would have been made in part because return a trump is way too risky (not based on your good analysis). DQ when its wrong costs us a trick, a trump when its wrong might cost us multiple tricks.

Partner actually had xx AJT9xx AK8x x

So thanks to the D8, this defense would have set it 800. We only got it 300.... :(
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