Richard Rusczyk ( or ; Polish: ['rust??k]), born 21 September 1971, is the founder of Art of Problem Solving (AoPS) Inc.
(as well as the website, which serves as a mathematics forum and place to hold online classes) and a co-author of the Art of Problem Solving textbooks.
Rusczyk was a national MATHCOUNTS participant in 1985, and he won the USA Math Olympiad in 1989.
He is one of the co-creators of the Mandelbrot Competition, and the director of the USA Mathematical Talent Search (USAMTS).
He also founded the San Diego Math Circle.
Every month, Rusczyk works on the MATHCOUNTS website to create Mathcounts Minis, where he explains problems and concepts.