Fill in the grid so that every row, every column, and every 3 x 3 box contains the digits 1 through 9. All neighbouring cells with consecutive digits have a colored border between.
Fill in the grid so that every row, every column, and every 3 x 3 box contains the digits 1 through 9. All neighbouring cells with consecutive digits have a colored border between.
Fill in the grid the numbers 1 through 9 so that in every row, every column (even if it is not continous) and in cells of the same color no number is repeated. There are no neighbouring cells with consecutive numbers.