South's aim was to draw just two rounds of trumps, and not permit a third.

South drew two rounds of trumps and drove out the club ace.

Then he can draw two rounds of trumps and lead the heart from the dummy.

He therefore drew three rounds of trumps and led a spade to the nine.

He drew two rounds of trumps, discovered the bad break and played hearts.

After drawing two rounds of trumps, South played a heart to dummy's ten.

South won with the king and drew three rounds of trumps ending in the dummy.

Instead he won with the king, drew two rounds of trumps, and led the club jack.

He then drew three rounds of trump, ending in dummy.

South won in dummy, drew three rounds of trumps and played clubs.