Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Zoltán Ribli (born September 6, 1951 in Mohács) is a Hungarian chess grandmaster and International Arbiter (1995). He was twice a World Championship Candidate and three times Hungarian Champion.As a youngster, he was twice the European Junior Champion, in 1968/69 (shared) and 1970/71. In domestic competition, he has been three times the national champion of Hungary, sharing the honours in 1973 and 1977, while winning outright in 1974.His International Master and Grandmaster titles were awarded in 1970 and 1973, respectively.At the peak of his career, Ribli was twice a Candidate for the World Championship, in 1984 and 1986. At London in 1984, he participated in the high profile match between USSR and the Rest of the World, defeating his Soviet counterpart, Rafael Vaganian by a narrow margin.