Game Info: Welcome to Puzzleopolis - IQ Puzzle, the ultimate online jigsaw game! Enjoy endless fun, relaxation and challenge your mind with our digital jigsaw puzzles, perfect for puzzle lovers of all ages. Game Levels: Puzzleopolis - IQ Puzzle features three levels tab: 3x3 Grid: 9 pieces for beginners. 4x4 Grid: 16 pieces for intermediate players. 5x5 Grid: 25 pieces for advanced solvers. Game Characters: The game includes 18 unique, charming characters as puzzle pieces, adding a fun twist to the classic jigsaw puzzle. jigsaw puzzle, IQ puzzle, online jigsaw puzzle, brain training, puzzle game, 2D puzzle, board game, challenge, relaxing, fun, characters, touch control, mouse control, puzzleblock, 5x5 puzzle, 4x4 puzzle, 3x3 puzzle, brain games, mental exercise, cognitive skills