Gennady Borisovich Sosonko vs Kenneth S Rogoff
Biel Interzonal Biel SUI round 15 1976.07.31
Catalan Opening: Closed 1/2-1/2

Kenneth S Rogoff vs Steve Spencer
US Jnr Chp McAlpin Hotel, New York, NY USA 1969.??.??
Caro-Kann Defense 1-0