| 3-steps · All-steps · | Printable Puzzle. |
Difficult HyperSudoku-Xtreme Group Puzzle | |
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There are 10 steps required to solve the puzzle above with a total of 251 empty locations that must be determined .
Display the puzzle with superscripts showing the step number for the first 3 steps in their empty grid location.
Explain all of the deductive steps required to solve this puzzle.