Medium Sudoku Twelve Logic Puzzles (Vol 1)
Chapter 15: Two Medium (DiffLev 6) tpsmith-serious Puzzles (numbers 109-110)
- Step-by-step instructions for solving Puzzle 109, (78/144) Diff: 6/99.9742
- Step-by-step instructions for solving Puzzle 110, (82/144) Diff: 6/99.9999