More Wordoku puzzles at all levels of difficulty. 104 puzzles.

This variation on traditional Sudoku uses letters instead of numbers, with the additional challenge of discovering a hidden nine-letter word or phrase. All leve

You can be sitting in the train working on a puzzle but it can take you far away from the everyday. Before you know it you're at your stop or about to pass it.

There’s a common belief about the mental acuity of the aging brain: "If you don’t use it, you lose it.” Research published in the December 20, 2006 issue

Use it or lose it! It's important--for mature adults especially--to stimulate and challenge the brain constantly. Keeping the mind active may ward off such illn