Assume that the heart ace is played at the second trick and both opponents follow low.

Since then, its opponents have been following these primary strategies as well.

Because the only legal action the opponent may follow with is a capture, he or she must do so.

His opponent followed him, but did not crowd close.

If both opponents had followed low he would have had to hope for an even split.

However, this play leaves South guessing what to do next if both opponents follow low on the second round of hearts.

And opponents are following the same basic defensive game plan against the Knicks.

South continued dummy and breathing a little more freely when both opponents followed.

He then led the heart ace, and his contract would have been safe if both opponents had followed suit.

But what would he have done if both opponents had followed low on the club ace?