Challenging Sudoku Twelve Logic Puzzles (Vol 1) 
 Chapter 28: Two Challenging (DiffLev 15-17) Flowcharting Puzzles (numbers 135-136) 
 
-  Step-by-step instructions for solving  Puzzle 135, (88/144)   Diff: 15/969.6211.2466.9981
 -  Step-by-step instructions for solving  Puzzle 136, (96/144)   Diff: 17/5.3376.9994.3344.6952