Why Correspondence Chess Is Still Popular Among Elite Players

Players can take days or even weeks to take a turn, and they have embraced the use of software to find the best moves. The New York Times: [...] The International Correspondence Chess Federation allows players to consult engines during their games, making the matches a hybrid competition that involves the strategy and planning of humans guided by the accuracy of machines. In correspondence chess, players may spend days or even weeks on a single move. A typical game can last for more than a year. What does it mean to be the best in the world at a game in which a player's strength is enhanced -- or neutralized -- by computers? When asked about his own approach, Mr. Edwards said that his style was similar to that of Tigran Petrosian, the Armenian grandmaster known for his fortresslike defensive play. In most of Mr. Edwards's games, he tries to create and press a small advantage with the goal of gently nudging his opponents over the edge where, even with the help of the strongest engine, they are unable to escape an inevitable defeat. Even with such a plan, a majority of correspondence games end in a draw because it is nearly impossible to beat an opponent who has access to the defensive resources of a chess engine. Out of the 136 games played in the 32nd World Correspondence Chess Championship, 119 were draws. What's more, when games are decisive, this is sometimes because of human error. Given the high number of draws and the difficulty of winning even a single game, could Mr. Edwards be the last world champion correspondence player? He didn't seem to think so. "Most outsiders and many players believe that correspondence chess is dying," he said, "but the best correspondence players don't believe that."

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