They use the Precision System, so the one-diamond opening did not necessarily show length in diamonds.

The Ducheynes use a version of the Precision System, and the two no-trump was an asking bid.

They use a version of the Precision System that calls for an opening bid of one diamond with the North hand shown.

In 1998 he was a defendant in a dismissed class action suit by shareholders of Precision Systems.

Using the Precision System, South opened one diamond.

Playing with his wife, Mary Green, he used the Precision System to reach six hearts.

Using the Precision System, she and her partner climbed to a slightly optimistic three no-trump contract.

The Precision System was in use, forcing South to bid one diamond rather than one club.

They were using the Precision System, and two diamonds was a natural positive response to the strong-club opening.

The Precision System was being used and one diamond therefore showed a maximum of 15 points.