Variations on Sudoku-by5 Logic Puzzles (Vol 1) 
 Chapter 3: Three Easy Sudoku-by5 Puzzles (numbers 1-3) 
 
-  Step-by-step instructions for solving  Puzzle 1, (160/369)   Diff: 4/9932
 -  Step-by-step instructions for solving  Puzzle 2, (178/369)   Diff: 4/9993
 -  Step-by-step instructions for solving  Puzzle 3, (184/369)   Diff: 4/9992