This came up in a club game and the board was flat in 6♠+1.
The grand is excellent, I couldn't see a way of bidding it with certainty as from my point of view with the 5-5 hand partner could have had the same high cards with 3 hearts and 2 diamonds which would be ZP for 7.
Anybody have any interesting methods that would be useful here ?
I was playing with an unfamiliar partner, but with my preferred partner our auction would have gone:
1♠-4♣(void, exclusion, but 4♠minimum reply)
4♥(1/4 and not minimum)-4N(Q♠?)
5♣(yes and A♣)-5♦(any ♦help ?)
5♥(no, but I do have K♥)-5N(still interested in grand)
6♣(K♣)-?
And this is where I can't distinguish between AQxxx, Kxx, xx, AKx and AQxxx, Kx, xxx, AKx.

Help
