Easy Sudoku Twelve Logic Puzzles (Vol 1)
Chapter 34: Two Easy (DiffLev 3-4) Metalworking Puzzles (numbers 147-148)
- Step-by-step instructions for solving Puzzle 147, (57/144) Diff: 3/993
- Step-by-step instructions for solving Puzzle 148, (67/144) Diff: 4/9982