Sudoku 7,246 medium
Fill the grid so that every row, every column and every 3x3 box contains the numbers 1 to 9

Source: the Guardian
Fill the grid so that every row, every column and every 3x3 box contains the numbers 1 to 9
Fill the grid so that every row, every column and every 3x3 box contains the numbers 1 to 9

Source: the Guardian