21 Feb
2012
21 Feb
'12
7:19 p.m.
Ah, thank you both. But alas, the problem has all along been to do it with acute *isosceles* triangles. I believe Neil has a different Gardner book claiming the answer is still nine, but no picture. I'm beginning to wonder if it's an error. --rwg Stuart> I am advised (but cant verify); It's a little further along (page 258) in the answers section. ;) Hans> http://chesswanks.com/txt/Acute&IsoscelesTriangles.pdf