Several polls show the candidates with fewer than three points between them.
It shows a relatively balanced hand with 9-12 points and no five-card major.
The arms show a silver star with six points on a blue background.
The two no-trump opening showed a minor two-suiter with 5-10 points.
Patrick Ewing again showed the way with 32 points.
East had to open one diamond because one club, in their system, would have shown any hand with at least 16 high-card points.
First, South has shown a balanced hand with about 14 high-card points.
One club was strong, and the two-diamond response showed a balanced hand with 8 to 10 points.
Merblum as West opened two diamonds, which showed a three-suited hand with 11 to 15 points.
One club was Precision, showing any hand with 16 or more high-card points.