Variations on Sudoku-by5 Logic Puzzles (Vol 1)
Chapter 20: Three Challenging Education-Xtreme Puzzles (numbers 52-54)
- Step-by-step instructions for solving Puzzle 52, (262/369) Diff: 16/9999.9999.9612.4691
- Step-by-step instructions for solving Puzzle 53, (257/369) Diff: 17/9.9999.9999.9985.5753
- Step-by-step instructions for solving Puzzle 54, (262/369) Diff: 19/999.9999.9997.44C6.9982