September 22, 2012 -- Submitted by Tatiana, a reader from Russia, who is affiliated with the site.
This is a vast collection of math puzzles for all grades and subject. It features a collection of illustrated challenging math problems for students in grades one through twelve. The website has a graduated set of over 2200 problems, starting from the very simple to the extremely difficult. The website also includes hundreds of practical problems and brainteasers.
Posted in Math Puzzles