I became pi day challenge genius #181 at 3:14 on Sunday :-) Less than an estimated 10% of those who play do all 37+ (some have groups of puzzles). You can still play at any time at pidaychallenge.com #pidaychallenge Pi Day Challenge throughout the year. They're not just math/physics puzzles.   Per the owner of the site, I calculated the genius percentage incorrectly.  About... read more