Only diehards need apply These incredibly difficult sudoku are made to challenge even the most expert solver...and strain their brains to bursting. Each puzzle

The hottest craze in puzzles! From puzzlemaster and New York Times crossword editor Will Shortz comes sudoku, the new "wordless crossword" puzzle that's taking

Brain Games - Relax and Solve: Take a break, relax, and do a little puzzling. Sudoku puzzles are fun and engaging, while providing your brain a little stimulati

Expert Sudoku is an all-new collection of handcrafted puzzles for the expert puzzle-solver. This is the book that challenges skilled solvers and Sudoku-lovers a

Brain Games - Relax and Solve: Take a break, relax, and do a little puzzling. Sudoku puzzles are fun and engaging, while providing your brain a little stimulati