Medium Sudoku Twelve Logic Puzzles (Vol 1)
Chapter 45: Two Medium (DiffLev 8) Stenographic Puzzles (numbers 169-170)
- Step-by-step instructions for solving Puzzle 169, (84/144) Diff: 8/9999.8892
- Step-by-step instructions for solving Puzzle 170, (89/144) Diff: 8/9959.9994