Rules: Place some of the ten given pentomino shapes (the set with 'X' and 'P' excluded), not more than once each (rotations and reflections of the same shape are considered identical). Shapes do not overlap, but are allowed to touch diagonally. Blackened cells (if given) cannot be used. Given dots correspond to one pentomino each, and represent the edge that divides the pentomino into two parts - one containing 2 cells, and the other, 3 cells. There is no pentomino that is not divided by a dot. In the end, all of the unused cells must be connected in a single group through other unused cells.
About: Invented by Anurag Sahay.
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