The art of PUZZLE
"It's always the small pieces that make the big picture"
A puzzle is a game, problem, or toy that tests a person's ingenuity or
knowledge. In a puzzle, the solver is expected to put pieces together
(or take them apart) in a logical way, in order to arrive at the correct
or fun solution of the puzzle. There are different genres of puzzles,
such as crossword puzzles, word-search puzzles, number puzzles,
relational puzzles, and logic puzzles. The academic study of puzzles is
called enigmatology. Puzzles are often created to be a form of
entertainment but they can also arise from serious mathematical or
logical problems. In such cases, their solution may be a significant
contribution to mathematical research.
Read more on Wikipedia.