Challenging Sudoku Twelve Logic Puzzles (Vol 1)

Chapter 53: Two Challenging (DiffLev 16-20) Unperishably Puzzles (numbers 185-186)

• Step-by-step instructions for solving Puzzle 185, (88/144)   Diff: 16/9942.3212.4568.9981
• Step-by-step instructions for solving Puzzle 186, (95/144)   Diff: 20/9931.A113.2133.3574.8992