Playing on Bridge Base Online with the mighty robots, I picked up:
♠A J 5 ♥A K J 7 6 4 3 ♦10 ♣7 3.
I opened 1♥, left-hand opponent passed and partner bid 4♣ (a splinter bid), and RHO doubled. Over to you.
I didn't see any good way to get the robot to cooperate, so I asked for key cards with 4NT. Partner had one and I closed it out with 6♥.
West led the ♣J and here are the North-South hands:
♠3. Now what?
You can ruff your club loser, but you only have 11 sure tricks in the form of: two spades, seven hearts, one diamond and a club ruff in dummy.
Before you decide how to play, let me give you a hint. The robots almost never lead away from the ♠Q in a case like this, so sticking in the ♠J won't work. I decided my best shot was if West had the ♠Q and long diamonds. In that case I have an easy squeeze against him. If that doesn't develop, maybe the ♠Q will drop.
I won the ♠A, led a diamond to the ace and ruffed a diamond. I drew trumps (they were 1-1) and ruffed another diamond. I ruffed my club loser and ran hearts. Here was the layout with one trump to cash:
Here are all four hands:
For making slam, I scored 97.3%. Of the 38 players, 21 bid slam and went set. Fourteen bid and made game. Three of us bid and made slam. It was a baby squeeze, but you had to see to ruff out the diamonds (this is called isolating the menace) to set it up. You also had to win the ace when spades were led to keep the king in dummy for an entry. Notice that if dummy had a low club and the king was the ♠Q, it would be a laydown contract. But then, however, there wouldn't be a story, would there?