Sudoku I.Q. Challenge

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 com...