About Sosnick Chess

Sosnick Chess is a 501(c)(3) organization that was founded in memory of Stephen Sosnick, a passionate chess player and professor at UC Davis. Our mission is to honor his legacy by promoting and advancing the game of chess. We host an annual weekend tournament that offers a variety of events, including lectures by a Grandmaster, simultaneous play, and multiple tournament options. Sosnick Chess is committed to providing a welcoming and inclusive environment for chess enthusiasts of all ages and skill levels. Our events are designed to encourage the growth and development of the chess community while honoring Stephen Sosnick's love for the game.

Elika Rosenbaum is the festival chair with a history of organizing events.  She grew up playing chess. 

Mr. John McCumiskey has been active in the chess world for many years, playing tournament chess since 1977 and directing chess tournaments since 1979.  Today, he is a USCF National Tournament Director and FIDE International Arbiter.  Mr. McCumiskey is a retired US Army Corps of Engineers information technology security specialist.  Since 2006, he has been teaching Social Science and Mathematics at CK McClatchy High School in Sacramento.  Mr. McCumiskey has been married to his wife, LaVerne, for over 43 years.

Michael Aigner is a US Chess National Master and FIDE Trainer who qualified for and played at the 2007 US Championship. He has won tournaments in Sacramento, the Bay Area and Las Vegas. In addition to pushing pawns, Michael coaches the next generation of chess masters. Check out his personal website at fpawn.com.