Difficult Sudoku Twelve Logic Puzzles (Vol 1)

Chapter 15: Two Difficult (DiffLev 10) tpsmith-serious Puzzles (numbers 109-110)

• Step-by-step instructions for solving Puzzle 109, (82/144)   Diff: 10/97.7997.8755
• Step-by-step instructions for solving Puzzle 110, (88/144)   Diff: 10/99.9999.9942