On the diagramed deal, North chose to open a 10-point hand, encouraged by having two five-card major suits.

He assumes a five-card suit and shifts decisively to a heart.

This suggested a strong five-card suit, since he would have presumably bid four hearts a round earlier holding six.

True, the hand has 13 cards and a five-card suit.

When West won with the king, he was convinced that it was his partner who held a five-card suit.

The opening bid was one heart, which purported to show a five-card suit.

With two five-card black suits, it used to be popular to open one club, making for easy responses and rebids.

It purported to show 9-15 points with three or four spades and a five-card suit on the side.

Since West led the five and then produced the three, it was clear that he had begun with a five-card suit.

Some do it routinely, and may have responding methods that allow the five-card suit to be shown.