Easy Sudoku Twelve Logic Puzzles (Vol 1) 
 Chapter 14: Six Easy (DiffLev 4) tpsmith-surprised Puzzles (numbers 103-108) 
 
-  Step-by-step instructions for solving  Puzzle 103, (65/144)   Diff: 4/9992
 -  Step-by-step instructions for solving  Puzzle 104, (69/144)   Diff: 4/9971
 -  Step-by-step instructions for solving  Puzzle 105, (71/144)   Diff: 4/9991
 -  Step-by-step instructions for solving  Puzzle 106, (72/144)   Diff: 4/9992
 -  Step-by-step instructions for solving  Puzzle 107, (72/144)   Diff: 4/9992
 -  Step-by-step instructions for solving  Puzzle 108, (74/144)   Diff: 4/9991