Medium HyperSudoku-Xtreme Group Puzzle

The grouppuzzles.com Medium HyperSudoku-Xtreme puzzle for with all 8 steps marked

Permission is granted to teachers in grades K-12 to print and photocopy these puzzles for use in their classes. Permission is also granted for individuals to print for personal use. All other rights are reserved.
  http://www.grouppuzzles.com