The puzzles in this collection of treacherously difficult puzzles will stretch even the most advanced Su Doku enthusiast. You will need to use all of your best

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

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