Tuesday: [[attachment:tkz-graph-tuesday.png]] Wednesday: [[attachment:tkz-graph-wednesday-1.png]] [[attachment:tkz-graph-wednesday-2.png]] Thursday: Minimal solution to Tower of Hanoi puzzle with 3 pegs, 4 disks [[attachment:tkz-graph-thursday.png]] Continued at [[http://trac.sagemath.org/sage_trac/ticket/9074|Trac 9074]]