Wheel - Referring to a hand-drawn circular sketch divided into four
quadrants, each representing an overhead assignment for each player.
The wheel is used to aid the scorer regarding the Vulnerability for each
player when using Chicago scoring.
As a reminder of vulnerability
in Four-Deal Bridge, two intersecting diagonal lines should be drawn
near the top of the score pad, as follows:
The numeral "1" should be
inserted in that one of the four angles thus formed that faces the
first dealer. After play of the first deal is completed, "2" is
inserted in the next angle in clockwise rotation, facing the dealer of
the second deal. The numerals "3" and "4" are subsequently inserted at
the start of the third and fourth deals, respectively, each in the
angle facing the current dealer.
A correctly numbered diagram is
conclusive as to vulnerability. These is no redress for a bid
influenced by the scorer's failure to draw the diagram or for an error
or omission in inserting a numeral or numerals in the diagram. Such
error or omission should, upon discovery, be immediately corrected and
the deal or deals should be scored or rescored as though the diagram
and the number or numbers thereon had been properly inserted.
See Alternative Rubber Bridge Laws -