Medium Sudoku Twelve Logic Puzzles (Vol 1)
Chapter 21: Two Medium (DiffLev 6-7) Configurated Puzzles (numbers 121-122)
- Step-by-step instructions for solving Puzzle 121, (82/144) Diff: 6/99.9991
- Step-by-step instructions for solving Puzzle 122, (87/144) Diff: 7/999.9992