1. In a weak(ish) field, few pairs bid grand unless they have 14 top tricks. At the risk of exaggerating my skill level, I usually expect to win in a weak field, unless I get fixed too much or give away tops... and bidding grand here is a top/bottom swing. I will try to win the event on other boards....pass.
However, if mid way through the game and things are not going well, then 7... what the heck?
At imps, it is even clearer, in my view, not to push to 7 unless in need of a swing. The imp odds strongly suggest not overreaching for a grand.
BTW, I expect partner to hold good, longish
♠ and at least one short red suit... no 4
♠ bump on my left and no effort to reach notrump... so AKx Ax void AQJ10xxx is possible... and, yes, that is 13 tricks... but AKx KQ void AQJ10xxx is not.
2. 7
♣. I am putting a lot of faith on a slender inference. Partner could have placed us in slam by bidding 5N rather than 4N. So this sequence should be a very strong grand slam try. Ax void AKQxx KQJxxx is enough, I hope, despite the likely bad breaks. One minor concern: what is the difference between the given auction and a 5
♥ cue at his second turn?
3. 5
♠ should show both red aces, 1st round
♠ control and grand slam interest... but am I quite good enough for that? I think so: even if we are missing the
♥Q, we may be ok if he has
♦ length or the
♥10....or Kx
♥ and a 4th
♣.... and it is not clear that he will leap to 7 on 3 bare Kings and at most the side
♦J. The reason 5
♠ shows both red Aces is that we could cue the one we hold if we were missing one. While this answer (an aggressive try for grand) may seem inconsistent with the answer to the first problem, I don't think it is: on the first problem, I had to make a committal decision with insufficient information, while, here, I am trying to give partner the information he requires. I have nothing against bidding grands at mps provided that we are not flat-out guessing. And I am NOT passing 5
♣
'one of the great markers of the advance of human kindness is the howls you will hear from the Men of God' Johann Hari
P P 1♣ 3♠
x P 6♣ P
?