What are the mechanics in sudoku?
The mechanics involved in sudoku follow the principal, that any
3x3 grid can be filled with the numbers 1-9, every row can have
1-9, and every column can have 1-9, to eventually have a complete
9x9 grid filled with the numbers 1-9, where no numbers in any row,
column, or 3x3 grid have two of the same number