Easy Sudoku Twelve Logic Puzzles (Vol 1)
Chapter 44: Two Easy (DiffLev 3-4) Recognizably Puzzles (numbers 167-168)
- Step-by-step instructions for solving Puzzle 167, (51/144) Diff: 3/992
- Step-by-step instructions for solving Puzzle 168, (62/144) Diff: 4/9992