Tetroku is a tetromino-based roll-and-write game where you score points using a simple sudoku-style system. It plays in about 20-40 minutes, depending on the number of players. There is no limit to the number of players who can play (from 1 to 999 or more!). The only components required are a six-sided die for the group, plus a single game sheet and pencil per player. —description from the designer

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