Mr. Binairo is a binary puzzle game also know as Takuzu or Binary Sudoku. Features. 4 different grid sizes - 6x6 / 8x8 / 10x10 and 12x12. 1000 grids available. Detailed rules and tips. Auto save game and continue playing whenever you want. Timer to beat your previous time. Highlight cells when rules not respected. Differentiate permanent numbers. Clean interface.