The first in a new series: hard puzzles for serious sudoku solvers. Do you have what it takes? These 200 challenging sudoku puzzles from Will Shortz will keep y

Killer Sudoku Puzzle Book If you like Sudoku but want an extra challenge then you will love Killer Sudoku. Killer Soduku (also known as killer su doku, sumdoku,

Extreme Sudoku Puzzle Book If you are an expert at Sudoku but want an extra challenge then you will love our Extreme Sudoku Puzzles. Featuring 156 Puzzles of 3

From krazydad, constructor of the wildly popular and addictive puzzles published in The New York Times as Two Not Touch, here are 360 of your favorite Star Batt

With their stylish design, Pocket Size Puzzles series is bound to be the books every puzzle fan will want to be seen solving this season. Edited by puzzlemaster