A Sudoku grid is a special case of a Latin square: a 9×9 grid where each symbol appears exactly once in each row and column.
A Sudoku grid is a special case of a Latin square: a 9×9 grid where each symbol appears exactly once in each row and column.
"First say to yourself what you would be; and then do what you have to do." — Epictetus
"First say to yourself what you would be; and then do what you have to do." — Epictetus