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Fifteen puzzle is a sliding puzzle that consists of a frame of numbered square tiles in random order with one tile missing. "15 puzzle" (Wikiversity) — script in JavaScript, developed under Web laboratory as an educational project.
A puzzle game with Graeco-Latin squares modeled after 15-puzzle, a well-known sliding puzzle. This game has more variations and is more complicated than 15-puzzle. But it brings players more fun. Please visit the homepage - http://tetta.sourceforge.net/