Eric Ostermeier provides data chess-playing presidents.
In fact, according to a 2011 survey by the University of Minnesota's Humphrey School of Public Affairs, dating back to the Chester Arthur administration in the early 1880s, 89 percent of Democratic presidents have been chess players (8 of 9), compared to just 35 percent of Republicans (5 of 14).
Washington Times
November 6, 2012