Variations on Sudoku-by5 Logic Puzzles (Vol 1)

Chapter 6: Three Challenging Sudoku-by5 Puzzles (numbers 10-12)

• Step-by-step instructions for solving Puzzle 10, (254/369)   Diff: 16/9999.9999.9999.7654
• Step-by-step instructions for solving Puzzle 11, (262/369)   Diff: 19/999.9999.9999.9999.7552
• Step-by-step instructions for solving Puzzle 12, (268/369)   Diff: 20/9999.9999.9968.9984.3552