[br]Three references about Squared Squares and another curiosities...[br][br]http://web.mat.bham.ac.uk/C.J.Sangwin/howroundcom/jigsaw/index.html[br]http://www.squaring.net/sq/ss/spss/spss.html[br]http://mathworld.wolfram.com/PerfectSquareDissection.html