Challenging Sudoku Twelve Logic Puzzles (Vol 1) 
 Chapter 35: Two Challenging (DiffLev 19-20) Multipronged Puzzles (numbers 149-150) 
 
-  Step-by-step instructions for solving  Puzzle 149, (96/144)   Diff: 19/953.2433.3442.5897.6657
 -  Step-by-step instructions for solving  Puzzle 150, (88/144)   Diff: 20/9422.3566.6446.3344.3365