Counting your tricks, you have 2 spade tricks, 6 diamonds and 1 club. 2 more spades are easily established, and the 12th trick will easily come if either black­suit finesse works or diamonds are 2-2.

But what if both finesses are wrong and diamonds are 3-1? Can you still make? Thankfully, there is a sneaky line that combines all of your chances.

Now pull trumps. If trumps are 2-2, then finesse a spade and claim. Otherwise, we have reached the position shown at right.

Now lead a low spade to dummy. If lefty follows, then play the J. If that loses, then righty is endplayed to lead clubs towards dummy. If the J holds then you can claim.

On the other hand, if lefty shows out on your low spade, then win the K and exit the J, endplaying righty into leading a club for your 12th trick.

If trumps break 4-0, then you will draw trumps immediately and try each of the black­suit finesses, praying that one of them works.

Well done!