You pick up AK6 AKJ87 void AQJ86
What do you open?
Obviously you could open 2C. You play a form of kokish, such that if partner responds 2D, which he will with most hands containing at least a king, that would allow you to bid 2H, forcing 2S, over which your 3H rebid will show hearts and clubs. However, that might be 5=4.
Plus partner might cross you up via a 3D response....2 top honours, 5+ suit and no other 4 card suit.
An attractive alternative is 1H. In your methods, partner strains to respond, so you might miss a game should he pass, but it’s unlikely that he will pass AND have the cards you’d need to score up a game. Also, the opps may ‘rescue’ you by bidding.
I think 1H is best, only a little biased by the fact that my partner chose that at the table
So it starts 1H P 1S P, back to you.
You have an easy 3C bid. This establishes a game force.
In your partnership, as is fairly common, 3C is a little suspect. Even in standard bidding, 3C can be a 3 card suit with, say, AJx AKQJxx x Axx.
Partner temporized with 3D. This simply stalls for time, being more of a call that denies certain holdings more than being descriptive. He does not have 3 hearts. He does not have 6 ♠️
He does not want to bid 3N, but that could be because he lacks the right values or because he’s too strong to risk you passing.
Now you have an easy 3S bid.
Partner bids 3N
Now what?
He didn’t bid 3N last time, but now has. So he has only 4 spades, at most two hearts, and had some reason for not bidding notrump last time. It wasn’t because he wanted to suggest diamonds as trump...that train left the station after 3C.
It seems clear to bid 4C. For one thing, we are a king heavier than he so far expects, and for another, we have not yet shown our real club length.
Over 4C, partner makes a slightly unexpected jump to 6C.
Now what?
Partner must have at least Kxx in clubs, and may have Kxxx. He has short hearts. He also has extras that he thinks are slam friendly. You’ve pretty much shown your shape: you can’t have more than one diamond, so he won’t think honours other than the Ace are slam friendly. Thus we have a parking spot for our spade spot even if he lacks the Queen.
In addition, there is no reason he can’t have, say, QJxx x AJxx Kxxx or the like.
One should not bid grands that are 60% or less likely to make, due to the relative sizes of loss and gain. But there are basically no holdings he can have that offer no play and many holdings where 13 tricks are nearly lay down.
So 7C it is
You await dummy with some anticipation. It’s not every day that one bids to a grand slam with no cuebidding and no ace asking.
The opening lead is the diamond 7.
Plan the play
You have 12 top winners, assuming clubs are no worse than 4-1.
It seems safe to try the diamond Jack, since that’s 13 winners if it holds.
It’s covered by the Queen so you ruff.
Now what?
Ruffing a heart low is risky, since a 3=3 break is against the odds. Ruffing high is risky since clubs could be 4-1.
So let’s find out whether we can afford to ruff a heart high...cash the club AQ.
Both follow, so now you’re cold unless hearts are breaking really badly. You play the AK, intending to ruff next with the King, cross in spades, pull the last trump and take 13 winners....3 spades, 2 hearts, a ruff, 2diamonds and 5 clubs.
As it happens, the heart Queen drops on the second round, so you just pull trump and claim.
Had clubs been 4-1, you would have played the club King, come to hand in spades, pulled trump. Spades might be 3=3, and you have decent chances for a squeeze...the hand with the short club might easily be 4=4=4=1 and they can’t hold the major position when you cash the clubs then the spades, ending in dummy, then the top two diamonds. There might even be a red suit squeeze, say with one player being 2=4=6=1 (if he’s 4=5 reds, spades are 3=3). Or opening leader might be 4=3=5=1, though you’d need to read the position...which you might well do as he crumbles on the run of the clubs.
What I found most interesting about this hand was that a good player at the other table opened 2C and he and his expert partner were unable to reach grand. It’s long been my belief that 2C auctions don’t handle marked two suited hands very well. I’m sure that most of us can easily bid these hands to 7C after a 2C start...once we know both hands. I think here, even with our version of kokish, where opener can show at least 5=4 by bidding 3H after 2C 2D 2H 2S, it’s not easy. I don’t think it’s clear what south should do at that point. 4C risks setting a 4-3 fit as trump. The hand is far too strong for 3N.
I think it’s too strong for a natural 4N as well...this is slam material opposite a sound 2C bidder.
So maybe 5N? Pick a slam?
That gets us to 6C but who can bid 7?
I’ve often argued that too many players seem unwilling to bid slams without asking for keycards, and wanted to show a hand where neither player even cuebid, let alone asked for keycards.