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Tetris(R); (C)Elorg 1987 Tetris The Grand
Master 3 TM; (C)Elorg 2005 Tetris Logo
by
Roger Dean; (C)The Tetris Company 1997All Rights Reserved Original Concept & Design by Alexey Pajitnov Tetris(R) and Tetris The Grand Master 3 TM licensed to The Tetris Company and sublicensed to Arika Co., Ltd. I.R.S.（Initial Rotation System）and T.L.S.（Temporary Landing System）and I.H.S.（Initial Hold System） design by Arika Co., Ltd. |