Challenging Sudoku Twelve Logic Puzzles (Vol 1)

Chapter 29: Two Challenging (DiffLev 20) Goldsmithery Puzzles (numbers 137-138)

• Step-by-step instructions for solving Puzzle 137, (89/144)   Diff: 20/9421.A123.21C3.3358.8994
• Step-by-step instructions for solving Puzzle 138, (97/144)   Diff: 20/9723.4134.5321.C557.9991