Will Shortz Presents Outrageously Evil Sudoku: 100 Deviously Difficult Puzzles in Bloomington, MN

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