Curious end position

[rod]

Here's a position I came across as declarer, South, with hearts trump and the lead in dummy.

♠ QJ5
♥ --
♦ 8
♣ 6

♠ A
♥ A85
♦ --
♣ 7

♠ 1087
♥ --
♦ --
♣ Q9

♠ --
♥ 1076
♦ --
♣ A10

How to take three of the last five tricks?

If you try to pitch a club on the "good" diamond West will ruff, exit with a black card and must come to two more trump tricks. Finessing clubs does not work either.

Instead you must ruff a spade, cash the ♣A and exit with a club.

The real test of a good declarer, though, is knowing that this is the position!