Difficult Sudoku Twelve Logic Puzzles (Vol 1)

Chapter 19: Two Difficult (DiffLev 11-12) Columnarized Puzzles (numbers 117-118)

• Step-by-step instructions for solving Puzzle 117, (84/144)   Diff: 11/954.7999.9633
• Step-by-step instructions for solving Puzzle 118, (84/144)   Diff: 12/9895.4357.9972