United States tirelessly for years, running chess tournaments and giving simultaneous exhibitions everywhere. After his failure in the 1946 U.S. Open in Pittsburgh, he never played tournament chess again, except for two games as a member of the U.S. team in the 10th Chess Olympiad (Helsinki 1952), getting a draw with Soviet Grandmaster Alexander Kotov, one of the strongest players in the world, and a draw with Hungarian International Master Tibor Florian, in a game which Koltanowski appeared to be winning. Blindfold chess On 4 December 1960, in San Francisco, California, Koltanowski played 56 consecutive games blindfolded, with only ten seconds per move. He won fifty and drew six games. Koltanowski still holds the record in the Guinness Book of Records. Simultaneous blindfold chess Possessed of an incredibly powerful memory, Koltanowski would give blindfold exhibitions, playing several games simultaneously. In Edinburgh in 1937 Koltanowski set a record by simultaneously playing 34 games of blindfold chess. Later, Miguel Najdorf broke that record, but Koltanowski claimed his efforts were not properly monitored. Najdorf played 40 games at Rosario, Argentina in 1943 and 45 games in São Paulo in 1947. Later years Many of Koltanowski's relatives were murdered in the Holocaust. Koltanowski survived because he happened to be on a chess tour of South America and was in Guatemala when the war broke out. In 1940, the United States Consul in Cuba saw Koltanowski giving a chess exhibition in Havana and decided to grant him a U.S. visa. Koltanowski met his wife Leah on a blind date in New York in 1944. They settled in San Francisco in 1947. Koltanowski became the chess columnist for the San Francisco Chronicle, which carried his chess column every day for the next 52 years until his death, publishing an estimated 19,000 columns. The FIDE named him International Arbiter in 1960. Koltanowski played a newspaper game against grandmaster Paul Keres. Following a system similar to that adopted in the Kasparov versus The World match, readers would vote on moves and send them into the Chronicle. Koltanowski would select the move actually played, and would award points and prizes to his readers for their selections. However, after about only 25 moves, Keres abruptly stopped the game and declared himself the winner by adjudication. Koltanowski disagreed and showed analysis which seemed to give him at least an even game. Keres, an Estonian, may have been ordered by his Soviet