I'm thinking my reasoning may be flawed. I basically assumed that is 2*a*b is a square then 2a=b. So there may be other solutions.(I haven't time to investigate right now.)
blackjack
<a href="http://c.casalemedia.com/c?s=51816&f=3&id=0" target="_blank"><img src="http://as.casalemedia.com/s?s=51816&u=http://perplexus.info&f=3&id=0&if=0" width="120" height="600" border="0"></a>
flooble's webmaster puzzle
re: Solution - flaw?
