These popular logic puzzles from Japan are taking the world by storm. Sudoku looks like arithmetic but requires just logic. While the rules are simple, the solu

Obsessed sudoku fans know that the newspaper puzzles just aren't enough to feed their solving addiction. But they don't have to worry, because they can pull out

Sudokus are extremely satisfying and enjoyable number-placement puzzles that give our brains a great workout. This brilliant collection is graded by level of di

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