Challenging Sudoku Twelve Logic Puzzles (Vol 1)
Chapter 52: Two Challenging (DiffLev 15-20) Unmistakedly Puzzles (numbers 183-184)
- Step-by-step instructions for solving Puzzle 183, (88/144) Diff: 15/997.7993.1332.3882
- Step-by-step instructions for solving Puzzle 184, (93/144) Diff: 20/9732.1421.1333.2164.9993