Challenging Sudoku Twelve Logic Puzzles (Vol 1)
Chapter 33: Two Challenging (DiffLev 16-17) Incomputable Puzzles (numbers 145-146)
- Step-by-step instructions for solving Puzzle 145, (90/144) Diff: 16/9652.1325.5769.9971
- Step-by-step instructions for solving Puzzle 146, (90/144) Diff: 17/8.62B3.4335.7663.8984