East cannot safely continue hearts, and is likely to shift to a club.

This was ducked, and East took his king and continued the suit.

East can continue the suit, but West has no more spades to lead when he wins his ace.

East won with the ace and continued the suit.

But East had no way of knowing this, and continued with the spade king.

A club was led to the queen and East continued the suit.

He won with the queen when East played low, and continued with the club king.

West led the diamond nine, and East won and continued the suit.

A club was led, East taking his ace and continuing with the queen.

East put up the king and continued the suit for South to ruff.