Challenging Sudoku Twelve Logic Puzzles (Vol 1)

Chapter 39: Two Challenging (DiffLev 19-20) Overmatching Puzzles (numbers 157-158)

• Step-by-step instructions for solving Puzzle 157, (92/144)   Diff: 19/934.4665.5583.3346.7541
• Step-by-step instructions for solving Puzzle 158, (98/144)   Diff: 20/6432.4231.2224.5358.9996