Zagonetka 186297: Crni šah-mat
Zagonetka 186297: Crni šah-mat
Hans Petersen - Paul Yerbury
22nd olm final Haifa ISR (2), 1976.10.26 Petersen - Yerbury, Haifa 1976
22nd olm final Haifa ISR (2), 1976.10.26 Petersen - Yerbury, Haifa 1976