When rotations and reflections are not considered to be distinct shapes, there are 35 different free hexominoes.
When rotations and reflections are not considered to be distinct shapes, there are only two different free trominoes: " I " and " L " ( the " L " shape is also called " V ").
When rotations and reflections are not considered to be distinct shapes, there are 108 different free heptominoes.
When rotations and reflections are not considered to be distinct shapes, there are 1, 285 different free nonominoes.
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