Cascade, on 2011-April-16, 19:01, said:
1. Lightner
Should north make a Lightner Double here?
Yes.
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Supplementary questions:
a/ What exactly does a Lightner double mean when partner has opened with a preempt? Does it ask for partner's (preempters) suit or a different suit?
The same as in other sequences. A source of tricks somewhere, often based on a void and asks for an unexpected lead. If there is a preempt the lead still depends on the bidding sequence.
Here a void in
♦ is unlikely and a
♦ lead is the expected one. LHO is very likely to be short in
♦. However, in a top partnership this is a difficult decision, since partner should have bid the side suit void previously.
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b/ Is it any different at the six-level - I think I have asked this question before - another way of putting it is what is an unusual lead for a preempter?
No, one of the side suits.
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2. Preempt
What should north do over 5♦?
Bid 5
♠. This can hardly be anything but a lead director based on a
♦ fit.
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3. Judgement
Is west really good enough for 7♥? The hand does have a couple of losers.
I think so. If West has 5 cards in
♥ you want to be there (even though a 3-0 break is more likely after this bidding, partner is still a favorite to hold the
♥Q) and if he has 4 cards the grand still has play, still a 50% chance that partner holds the
♥Q.
Furthermore on what basis is partner supposed to accept if you invite with 6
♦? I doubt he will with most hands where the grand will make. If partner has 3 cards in
♥, which is unlikely, no slam may make.
I do not live long enough to wait for a zero loser hand.
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4. Method
Does anyone play any sophisticated methods here?
Someone suggested 6♦ rather than 5♦ is the same hand but inviting seven. Whereas 5♦ then raise is less encouraging.
If you are a professional do what you like. For most others, I doubt that your score will improve by ever more agreements, which come up every other leap year and where both sides have little experience, which hand would qualify and which hands would abuse the agreement.
Without agreement I would consider 6
♦ not only stronger but it should also show a huge major two-suiter, which virtually forbids 7
♣, unless partner has a solid suit, which can play opposite a small singleton. So it is clearly wrong when you hold
♣AKx. I would be delighted hearing 6
♣ from partner over 5
♦, which is usually also based on majors, and would not hesitate to raise to 7
♣, expecting a seven card suit or a good six card suit, when missing AK.
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5. Preempt[2]
At another table south did not open. I know everyone would open so assume that the bidding started with west ...
2♣ 2NT Dbl ?
How many diamonds from south?
3
♥ for me
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Or would you psyche? What psyche?
Lead director, no psyche for me. Of course this may backfire, when opponents cleverly direct the declaration into the right hand. But this is easier said than done at the table.
Rainer Herrmann