U.S. Grandmaster (2008). Professor in Mathematics.
Kaufman tied for first at the World Senior Championship 2008 with GM Mihai Suba, and took the official crown on tiebreak. He also shared 1-4 at the World Senior Championship 2010.
Computer expert he is known for his work on world-champion computer chess engine Rybka.
The author of the Kaufman Repertoire for White and Black.
U.S. Grandmaster (2008). Professor in Mathematics.