SUDOKU

Syntax: sudoku
Syntax: sudoku (new/puzzpossible/possibilities)
Syntax: sudoku set (row[1-9]) (col[1-9]) (value[1-9])

Sudoku with no argument will display your current sudoku puzzle.
Using the argument 'new' will start a new puzzle.
Using the argument 'puzzpossible' will display your current
sudoku puzzle and the possibilities in empty blocks.
Using the argument 'possibilities' will display possibilities
for your current sudoku puzzle.
Using the argument set with a valid row, column, and value will
allow you to set that block to the desired value.