Will Shortz Presents Outrageously Evil Sudoku: 100 Deviously Difficult Puzzles

Sudoku fans everywhere have spoken and they are eager for more challenging puzzles. This book of 100 mind-melting puzzles is for the bravest sudoku solvers! Grab a pencil and match your wits against the hardest puzzles the Puzzlemaster has to offer.

Features:
* 100 super challenging puzzles
* Edited by legendary New York Times crossword editor Will Shortz
* Big grids with lots of space for easy solving