Easy Sudoku Twelve Logic Puzzles (Vol 1)
Chapter 31: Two Easy (DiffLev 3-4) Hyperstoical Puzzles (numbers 141-142)
- Step-by-step instructions for solving Puzzle 141, (48/144) Diff: 3/991
- Step-by-step instructions for solving Puzzle 142, (57/144) Diff: 4/9991