The first book of crosswords was published in 1924. It became a best-seller and crosswords replaced mahjongg as the most popular American game. Crossword puzzle design and solving is an excellent way to sharpen focus. Regardless of whether design and or solve numerous crossword puzzles, you will learn one more way to enhance memory and creative expression. Some even say that crossword puzzles help keep Alzheimer's at bay.

Nearly all word games improve spelling, the appeal of word-games is very easy to understand. Crossword puzzles encourage logical thinking and correct spelling. Some of crossword clues are straightforward and only require a wide vocabulary. However some contain devious clues, where there is always a logical link between the clue and the solution.

Some of crossword clues are straightforward and only need a wide vocabulary. While other clues induce a probability distribution over viable targets, which must somehow be respected along with the constraints of the puzzle. However devious the clue, there is always, in a well-set crossword puzzle a logical link between the clue and the solution. At best, clues induce a probability distribution over viable targets, which must somehow be respected along with the constraints of the puzzle. Some have begun using computers to solve crosswords, while others solve crosswords using the familiar and time-honored tradition of putting pen to paper. Crosswords encourage people to use dictionaries, both specialized crossword dictionaries as well as collegiate and unabridged dictionary volumes. Some believe that the pen and pencil mode indicate a degree of confidence in solutions and problem solving. Crossword puzzlers should always remember, that just because you wrote something down, doesn't make it right.

All in all, crosswords are very inexpensive, intellectually stimulating, calls for no partner and, most importantly, helps one forget the stresses and tensions of modern living. Intellectual stimulation is sought by the very intelligent and crosswords offer a release from mental tension. Creative crosswords afford little of that intellectual excitement that a more complicated crossword does. Crossword puzzles are very popular in many countries.