Variations on Sudoku-by5 Logic Puzzles (Vol 1)
Chapter 11: Three Medium Sudoku-Xtreme Puzzles (numbers 25-27)
- Step-by-step instructions for solving Puzzle 25, (225/369) Diff: 7/999.9988
- Step-by-step instructions for solving Puzzle 26, (228/369) Diff: 7/999.9992
- Step-by-step instructions for solving Puzzle 27, (230/369) Diff: 7/999.9993