Playing these methods, I think nobody made a mistake. I would be concerned about missing a slam holding the West hand, but bidding does not look attractive either. Next time you make a move partner holds KQJxxx Q xxx AKx.
I am sorry about this. 6♦ would have implied interest in a grand slam. I wasn't aware of this when I created the problem and couldn't really change it after people already voted.
At the table my partner simply bid 6♥, but if he had bid ...
I agree with most of the analysis.
However, I do no think that West is a favorite to hold the ♠Q.
The reason is that the 1♣ opening creates a pretty strong bias towards ♠Q with East.
Imagine for example that the ♥A is with West. That almost requires ...
Question 1: I take the finesse.
If it wins we win 6 IMPs. If it loses it costs 3 IMPs.(That's a simplified but practical assumption).
Thus we have 67% IMP odds on the finesse.
I think East is slightly a favorite to hold the ♠Q, because there are ...
Standard would bid transfer and follow with 3NT. On a large number of 2NT openings you will find that the ability to show 5♠ and 3♥ will almost gain nothing.
That's why I say the gains are small.
Just imagine that convention shows up one day. Partner ...
The latter. I can't recall one hand where we gained by being able to show
a) 5♠ and 4♥ via 3NT
b) A minor one-suiter with SI via 3♠
The other bids with both minors slammish or to play in 5m are even more useless, since ...