Is there a pattern to Sudoku?
Is there a pattern to Sudoku? The essence of the standard sudoku pattern is threefold: (a) a 9-by-9 grid of squares is divided into nine square sub-grids; (b) a set of nine distinct symbols is used, be they digits, letters, colors or shapes; (c) each row, each column and each sub-grid must contain each of the symbols exactly once.
The essence of the standard sudoku pattern is threefold: (a) a 9-by-9 grid of squares is divided into nine square sub-grids; (b) a set of nine distinct symbols is used, be they digits, letters, colors or shapes; (c) each row, each column and each sub-grid must contain each of the symbols exactly once.