Medium Sudoku Twelve Logic Puzzles (Vol 1)
Chapter 34: Two Medium (DiffLev 8) Metalworking Puzzles (numbers 147-148)
- Step-by-step instructions for solving Puzzle 147, (79/144) Diff: 8/9999.4942
- Step-by-step instructions for solving Puzzle 148, (80/144) Diff: 8/9999.9532