Can you handle it? These puzzles are going to throw you for a loop! Includes: -200 very hard sudoku puzzles -Perfect portable size -Edited by puzzlemaster Will

This volume features 200 of the most devious puzzles ever created Features: - 200 mind-melting puzzles - Edited by legendary New York Times crossword editor Wil

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

One of the biggest, boldest, and most impressive collections of sudoku available offers 1,000 top-quality sudoku edited by legendary "New York Times" crossword

The next in our new series of only the toughest puzzles for serious sudoku solvers! Do you have what it takes? These 200 challenging sudoku puzzles from Will Sh