A fun and clever twist for sudoku aficionados and egomaniacs–a chance to test their skills against seven levels of increasingly difficult puzzles to find their true sudoku I.Q! In a fun departure from the run of the mill competition, this book gives Sudoku aficionados a chance to test their know-how. Readers go through seven levels of increasingly difficult puzzles–easy, experienced, hard, brutal, murderous, genius, and sadistic–scoring points along the way, based on completion and time components, to find their true Sudoku I.Q.