



 
Beth, Yes, let the golfers be Agnes, Beth, Charlotte... Ivana. ABC This is a finite geometry with four sets of lines: horizontal (such as ABC), slope +1 (such as DBI), slope 1 (such as DHC) and vertical (such as ADG. You can actually see these in the diagram; note that slopping lines "wrap". Lines within a set do not intersect, lines in different sets intersect exactly once. So your schedule is
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