Tournament Sudoku Twelve Logic Puzzles (Vol 1) 
 Chapter 36: Two Tournament (DiffLev 22-26) Musicography Puzzles (numbers 151-152) 
 
-  Step-by-step instructions for solving  Puzzle 151, (97/144)   Diff: 22/97.3436.3111.2123.5379.9961
 -  Step-by-step instructions for solving  Puzzle 152, (97/144)   Diff: 26/71.2332.2421.2123.4798.2113.4859