Was Richard Guy misquoted? http://blogs.scientificamerican.com/guest-blog/martin-gardner-at-101-it-s-as... states: Another puzzle from 1989 that remains unsolved to this day, credited to Richard Guy, asked if it is possible to triangulate a square with whole number side lengths such that the resulting triangles also have whole number side lengths? --------------------------------------------- Here's an interesting, not-too-hard puzzle inspired by that. Divide a 12x12 square into the fewest number of integer-sided triangles. If you solve it, gloat about it, but don't give the answer. --Ed Pegg Jr