Easy Sudoku Twelve Logic Puzzles (Vol 1) 
 Chapter 3: Twelve Easy (DiffLev 3) Sudoku-12 Puzzles (numbers 1-12) 
 
-  Step-by-step instructions for solving  Puzzle 1, (48/144)   Diff: 3/994
 -  Step-by-step instructions for solving  Puzzle 2, (48/144)   Diff: 3/992
 -  Step-by-step instructions for solving  Puzzle 3, (49/144)   Diff: 3/994
 -  Step-by-step instructions for solving  Puzzle 4, (50/144)   Diff: 3/991
 -  Step-by-step instructions for solving  Puzzle 5, (51/144)   Diff: 3/992
 -  Step-by-step instructions for solving  Puzzle 6, (51/144)   Diff: 3/991
 -  Step-by-step instructions for solving  Puzzle 7, (51/144)   Diff: 3/981
 -  Step-by-step instructions for solving  Puzzle 8, (52/144)   Diff: 3/992
 -  Step-by-step instructions for solving  Puzzle 9, (52/144)   Diff: 3/991
 -  Step-by-step instructions for solving  Puzzle 10, (53/144)   Diff: 3/991
 -  Step-by-step instructions for solving  Puzzle 11, (58/144)   Diff: 3/992
 -  Step-by-step instructions for solving  Puzzle 12, (62/144)   Diff: 3/992