Join Bridge Winners
All comments by Jordan Lampe
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West seems to have an outside ace and a void, perhaps 4 was the bid that got us in trouble?
Oct. 5, 2015
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Perhaps a different way to think about the question: What do you expect Partner to lead if 6NT was NOT doubled?
Oct. 4, 2015
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Or make 22 different polls, one for each team.
Sept. 29, 2015
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If Partner had an invitational hand, why didn't he bid over 1NT? So I would assume Partner has a not-quite-invitational hand 5 or 6 points. In which case, he hardly needs Lebensohl OR Invitational. So I would think 2NT must show a two suited hand; clubs and a major. And further I would assume the major must only be 4 cards long, otherwise he should've transferred.
Sept. 27, 2015
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If partner's second double is not takeout, why do so many people bid 2 here?
Sept. 25, 2015
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If you bid 2, is that because you thought X was for Takeout, or because you don't think your Partner's penalty X is any good?
Sept. 24, 2015
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Who had the Q? If we give West the QJ, AQJ (if he had the AK why didn't he lead them?) and 2=2=4=5 shape, isn't that kind of a light bid when vulnerable at matchpoints?
Sept. 16, 2015
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Do you have an example where the same player failed to alert 2, or gave a different explanation?
Sept. 14, 2015
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Yuan, does that mean that 5-5 hands are always either drop dead or game forcing?
Sept. 6, 2015
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It is possible that the signal is not a lead request so much as “here is a suit in which I have strength”.
Sept. 3, 2015
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Perhaps the signal isn't “this is what I want you to lead”, but instead “here is a suit where I have strength”
Sept. 3, 2015
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How do you tell the difference between a World Class Player and an almost-World-Class-Player who gets World Class results by cheating?
Aug. 31, 2015
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Doesn't anyone want to bid 3NT over 3? On this hand it works out poorly, I admit (but better than 4NT, eh?) and it does describe my hand perfectly and I do have stoppers for whatever the heck East has.
Aug. 27, 2015
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What was the point of the 2NT bid?
Aug. 27, 2015
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I voted Pass but now that I think about it for 30 seconds, I've changed my mind. If my long suit were a minor, then I can legitimately worry about missing a major suit game. But since my long suit is a major, what's the problem? If we can make 4 then we can make 4.
Aug. 20, 2015
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Then the answer is I double with my most defensive 2/7 hands, bid 4 with my most offensive 1/7 of hands, and pass with the middle 4/7.
Aug. 19, 2015
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The probability model in poorly stated in the OP, so let me try to restate it. Once you look at your hand, you will be able to compute a “4 defense score” randomly and uniformly distributed between 0 and 1. You will also have a “4 offense score” which is an independent random number between 0 and 1. Meanwhile, your partner also has a 4 defense and a 4 offense score, which are also randomly and independently distributed.

If the sum of your and partner's defense score is between 1 and 2, then you defeat 4, and if it is between 0 and 1, then 4 makes. Similarly if the sum of the offense scores is between 1 and 2 then 4 makes, otherwise 4 goes down.

The opponents always pass, so the possible auctions are:

P,P
P,4S
P,X,P
P,X,4S
X,P
X,4S
4S

Solving this will take more space than I have in the margin, but in my experience in this sort of problem, you want to have the same probability for each possible auction, which means that “probably” the answer is you want to double 2/7ths = 28% of the time.
Aug. 17, 2015
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I think the reason to ask whether the pass should be forcing in theory is to help us decide whether the forcing pass should be an alertable call or not.
Aug. 17, 2015
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In the chess way, if you are in the bottom half, then you will do better in the Real Event if you sandbag beforehand. In the bridge way, all players have the incentive to do well (improve their seeding) at all times.
Aug. 11, 2015
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I play, among other things, delayed splinters. For example, 1M-1NT-2x-4C shows a 3 card M raise with a club splinter.
Aug. 4, 2015
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