Difficult Sudoku Twelve Logic Puzzles (Vol 1)

Chapter 31: Two Difficult (DiffLev 11-13) Hyperstoical Puzzles (numbers 141-142)

• Step-by-step instructions for solving Puzzle 141, (88/144)   Diff: 11/999.9932.2453
• Step-by-step instructions for solving Puzzle 142, (86/144)   Diff: 13/9.4213.4667.9996