Easy Sudoku Seven Logic Puzzles (Vol 1) 
 Chapter 15: Fourteen Easy (DiffLev 3) Sudoku-7D Puzzles (numbers 163-176) 
 
-  Step-by-step instructions for solving  Puzzle 163, (22/49)   Diff: 3/961
 -  Step-by-step instructions for solving  Puzzle 164, (23/49)   Diff: 3/991
 -  Step-by-step instructions for solving  Puzzle 165, (23/49)   Diff: 3/951
 -  Step-by-step instructions for solving  Puzzle 166, (24/49)   Diff: 3/961
 -  Step-by-step instructions for solving  Puzzle 167, (25/49)   Diff: 3/992
 -  Step-by-step instructions for solving  Puzzle 168, (25/49)   Diff: 3/964
 -  Step-by-step instructions for solving  Puzzle 169, (25/49)   Diff: 3/961
 -  Step-by-step instructions for solving  Puzzle 170, (26/49)   Diff: 3/992
 -  Step-by-step instructions for solving  Puzzle 171, (26/49)   Diff: 3/991
 -  Step-by-step instructions for solving  Puzzle 172, (26/49)   Diff: 3/971
 -  Step-by-step instructions for solving  Puzzle 173, (26/49)   Diff: 3/954
 -  Step-by-step instructions for solving  Puzzle 174, (27/49)   Diff: 3/993
 -  Step-by-step instructions for solving  Puzzle 175, (27/49)   Diff: 3/991
 -  Step-by-step instructions for solving  Puzzle 176, (29/49)   Diff: 3/975