Difficult Sudoku Twelve Logic Puzzles (Vol 1)

Chapter 48: Two Difficult (DiffLev 9-10) Thunderclaps Puzzles (numbers 175-176)

• Step-by-step instructions for solving Puzzle 175, (89/144)   Diff: 9/9.9659.9994
• Step-by-step instructions for solving Puzzle 176, (81/144)   Diff: 10/99.9965.7443