If I've done the math right, your suggestion is 67.5%. You win if diamonds are 3-3, or if diamonds are 4-2 and trumps are 2-2. You can fall back on the club finesse only if LHO hold the dA. Thus its about 50-50 half the time and about 75% half the time.
I wasnt sure which forum to post it in Probably should have picked Interesting Bridge Hands for that reason....I dont suppose theres a way to switch it?
As far as the bridge world goes, I think that if the drug is legal, it shouldn't be banned. In particular I think a caffeine ban would be utterly ridiculous.
I would double. This time the opponents are unlikely to have a long suit, and I sit over their high cards. I expect to get them down two more than once for each time that this backfires.
I thought that all three leads were reasonable. I led a club. For those interested in the result, a spade was necessary to hold the contract to 10 tricks, otherwise they make 11.
This is a completely normal 2♠ bid, which shows a stopper since there are two opponent suits. 3NT could easily be the right contract, even if partner has 6+ hearts. Pass is probably the worst call <= 4♥ (well maybe 4c is worse)
Any singleton will do, but you'll have to play different lines if it is the Jack or Nine than if it is the Ace or King. You could play the Queen and hope that RHO started with ♥AKJ5
All red, MPs. LHO is a real expert, RHO isn't. ♠10764 ♥107 ♦632 ♣AQ54 ♠K9 ♥Q86432 ♦QJ4 ♣76 You, South, opened 2♥. Double all pass. The defense is: ♦A, ♦K, ♦T, ruffed with the ♥5. ♠Q-K-A-4, ♠J-6-5-9. ♠2... How do you proceed?
I'm not familiar with this 4♣ convention. What do you do when you have AKQJxxx of clubs and out or KQJ8th of clubs and a stick? If the answer is "bid 5c" (I suspect it is) and double on stronger single suited club hands (normal 5♣ bids) then I would pass. I'd certainly raise if not playing that convention.
I also think it's a takeout double, but it shows enough high cards to be converted whenever pard can tell that spades aren't coming in. As such I'd double on #1 (a minimum) and pass the other two. Let's say for the sake of argument that I know partner will take the double as penalty. #1 is a hand where I *might* consider a penalty double, but I wouldn't on the others. I don't want to scare them out of NT on #2, and I think they will make #3 since the spades are breaking.
I'm pretty sure West has ♥AQ, ♦K, ♣A. There are not very many ways to make if this is the case, because West will usually win the race and establish a spade trick, or he can potentially knock out dummy's ♣K to establish club trick(s). I thought for a couple minutes, I don't immediately see a way to make the contract if West is (5332), so I will play him for one hand where I know I can make the contract (hidden)