Nine friends decide to play golf over nine weeks. Each week,
two foursomes will play on different courses, and one of the
nine friends will stay home. At the end of nine weeks, each
person will have played golf eight times, and will have
played with three playing partners each time, for a total of 24
playing partners. Can you build a schedule so that each person
will have each of the other people as a playing partner exactly
three times? Or, can you prove it can't be done?
Jon Abraham's friend's
mother-in-law's golfing group.
Mail to Ken