Difficult Sudoku Twelve Logic Puzzles (Vol 1)

Chapter 34: Two Difficult (DiffLev 10-14) Metalworking Puzzles (numbers 147-148)

• Step-by-step instructions for solving Puzzle 147, (88/144)   Diff: 10/97.6757.9991
• Step-by-step instructions for solving Puzzle 148, (93/144)   Diff: 14/55.8535.6567.9997