Run your long suit

We don’t understand North’s twospade bid and it was not explained to us. It must have had a conventional meaning in this partnership but we don’t know what that was. South was Danish expert Martin Schaltz

Schaltz won the opening club lead, which looked like a singleton, with dummy’s ace and fell back on the age-old tactic of running his long suit. There was nothing better to do. This was the position with one diamond left to cash:

He played his last diamond, and West could not defend the position. If West discarded a heart, Schaltz would discard a spade from dummy and play a low heart from both hands, setting up the eight of hearts. A spade discard instead and Schaltz would shed a heart from dummy and lead the king of spades, setting up dummy’s nine. Good things can happen when you run your long suit!