Magic Squares: A touch of mysticism and a lot of brain-challenging fun! By Marcel Danesi, Ph.D. in Brain Workout One of the most fascinating number games of all time ...

Greetings puzzlers near and far. When I say "far," I mean far because this week's winner is Sugiyama from Tokyo Japan who gets the Puzzle Of The Week via Wired Japan! Sugiyama figured out one of the ...

Only in the last five years has sudoku been capturing people’s recreational time. But 250 years ago, Benjamin Franklin was developing fascinating puzzles with principles quite similar to sudoku, ...