hy i just stumbled upon http://www.mathpuzzle.com its a quite cool website dedicated to not only polyominoes, but to all kinds of geometrical puzzle games. it also has a subpage about my favourite puzzle game DRO "According to ratings at the-underdogs.org, the best puzzle game of all time is Deadly Rooms of Death: Architects' Edition. " highly suggested for some brainwork! anyone here played it? likes it? or not? (sorry for going off-topic)
It's a very nice site. Been in my bookmarks for a while... And as for DRO It's a very good but often frustrating puzzle game. Completely turn based though, so your speed skills aren't very useful. Sorry...