Medium Sudoku Twelve Logic Puzzles (Vol 1)
Chapter 33: Two Medium (DiffLev 5-7) Incomputable Puzzles (numbers 145-146)
- Step-by-step instructions for solving Puzzle 145, (80/144) Diff: 5/9.9998
- Step-by-step instructions for solving Puzzle 146, (82/144) Diff: 7/999.9992