Tournament Sudoku Twelve Logic Puzzles (Vol 1) 
 Chapter 38: Two Tournament (DiffLev 24) Outsparkling Puzzles (numbers 155-156) 
 
-  Step-by-step instructions for solving  Puzzle 155, (88/144)   Diff: 24/8453.2121.2C13.4435.4335.5691
 -  Step-by-step instructions for solving  Puzzle 156, (101/144)   Diff: 24/7743.2213.B1B2.4344.6786.7349