Difficult Sudoku Twelve Logic Puzzles (Vol 1)

Chapter 21: Two Difficult (DiffLev 9-12) Configurated Puzzles (numbers 121-122)

• Step-by-step instructions for solving Puzzle 121, (79/144)   Diff: 9/9.8987.9971
• Step-by-step instructions for solving Puzzle 122, (88/144)   Diff: 12/9767.9899.4555