Paul Keres

Keres won the AVRO 1938 chess tournament, which led to negotiations for a title match against the reigning World Champion Alexander Alekhine, but the match never took place due to the outbreak of World War II in 1939. Keres was runner-up in the Candidates Tournament on four consecutive occasions in 1953–1962. Due to these and other strong results, many chess historians consider Keres one of the greatest "Super grandmasters" in history, and, along with Viktor Korchnoi, the strongest player never to become world champion.
Widely considered an Estonian national hero, he was nicknamed "Paul the Second", "The Eternal Second", and "The Crown Prince of Chess". Provided by Wikipedia