Brain Works: Badass Sudoku

Badass Sudoku, 6 Times the Pain is a collection of 250 puzzles featuring six styles of Sudoku puzzles: Classic, Irregular, Multi, Odd/Even, Diagonal, and Sum. Within each style, there are three levels of difficulty — clearly marked on each page — Easy, Medium, and Hard. Conceptis Puzzles created these to challenge all levels of players — those new to the popular puzzle craze and those who have already become hooked. Badass Sudoku will provide hours of entertainment while testing your skill and strategies.