mikeh, on 2020-February-19, 09:11, said:
The poll questions seem irrelevant to me. I have no idea why north thinks this is a slam hand. Bidding keycard seems inexplicable to me. Partner is likely 4=6=1=2 or 4=6=0=3. Why I’d play him for KQJx AKQJxx x xx or the equivalent seems weird.
Thanks for the comment. I am as puzzled as you about why North sought keycards here, but I am more interested in what happens afterwards, hence the poll questions.
mikeh, on 2020-February-19, 09:11, said:
Btw, what would you have South do with say KQxx AKJxx x xxx over 3C? Iow, how confident are we that partner is 4=6 majors?
I'm pretty sure he would have bid 3NT in that case. You can be confident he is 4=6 majors and has an Ace or the K
♥.