Variations on Sudoku-by5 Logic Puzzles (Vol 1)
Chapter 32: Three Medium HyperSudoku-Xtreme Puzzles (numbers 88-90)
- Step-by-step instructions for solving Puzzle 88, (239/369) Diff: 6/99.9995
- Step-by-step instructions for solving Puzzle 89, (222/369) Diff: 7/999.9432
- Step-by-step instructions for solving Puzzle 90, (230/369) Diff: 7/999.9972