Mega Feefteen is a sliding square puzzle, a superset if the Feefteen Puzzle. Mega Feefteen is a sliding square puzzle, a superset if the Feefteen Puzzle, One of the World's Best Known Puzzles. It consists of 9, 15, 24, and 35 numbered squares that are placed in a 3x3, 4x4, 5x5, and 6x6 leaving one position empty.
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Mega Feefteen is a sliding square puzzle, a superset if the Feefteen Puzzle.
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