This Sudoku variant contains the numbers 0 and 1. Only two equal numbers can be placed next to each other (horizontal and vertical). 

In each row and column the numbers or positions filled with 0 are equal with the ones filled with 1.

Download the Explanation.

Download the Binary Sudokus (including solution):

1. 10 X 10 * 
2. 12 X 12 *
3. 14 X 14 *
4. 14 X 14  ***
5. 20 X 20 ****
6. 14 X 14 with patterns  *
7. 14 X 14 with patterns  ***
8. 14 X 14 with horizontal and vertical patterns *
9. 14 X 14 with horizontal and vertical patterns ***