Difficult Sudoku Twelve Logic Puzzles (Vol 1)

Chapter 55: Two Difficult (DiffLev 12-13) Voluntaryism Puzzles (numbers 189-190)

• Step-by-step instructions for solving Puzzle 189, (88/144)   Diff: 12/9542.4579.9985
• Step-by-step instructions for solving Puzzle 190, (93/144)   Diff: 13/7.3455.7599.9992