Genius Sudoku is a kind of Nine-Couplet Sudoku with extreme difficulty and symmetry. We believe that it is extremely hard to reach the highest level-9, even for a genius. In order to save player’s patience and time, we have designed five tools to help the players to reach the apex before they are completely desperate. There are two modes of Genius Sudoku, player mode and man vs. machine play mode. Players can reach the highest level by using either mode independently, or can combine two differe