These lecture notes give a decent description of several different ways for three people to share (including non-"moving knife" solutions): http://www.cs.cmu.e

These lecture notes give a decent description of several different ways for three people to share (including non-"moving knife" solutions): http://www.cs.cmu.edu/afs/cs/academic/class/15451-f05/www/lectures/lect1201.txt http://www.cs.cmu.edu/afs/cs/academic/class/15451-f05/www/le...