Challenging Sudoku Twelve Logic Puzzles (Vol 1)
Chapter 41: Two Challenging (DiffLev 19-20) Persuadingly Puzzles (numbers 161-162)
- Step-by-step instructions for solving Puzzle 161, (90/144) Diff: 19/644.4356.1322.4757.7893
- Step-by-step instructions for solving Puzzle 162, (92/144) Diff: 20/821A.1121.2486.2239.9994