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Tetrominoes IJLO STZ Worlds.svg Tetrominoes in their Tetris Worlds colors which are the standard for Tetris since with beveled edges Top row Bottom row own work based on version November UTC Damian Yerrick uploader PD Tetrominoes don't need no stinkin' copyright Image Tetrominoes IJLO STZ Worlds Yes the top row is IJLOI OJL