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In this photograph taken on June 28, 2015, Indian chessboxers play a round of chess during the boxing round of The National Chess Boxing Championships in Kolkata. Chessboxing is a hybrid sport combining the mental workout of chess with the physical challenge of boxing. A chessboxing fight consists of 11 rounds, 6 rounds of chess and 5 rounds of boxing. Chess and boxing rounds alternate, beginning and ending with a round of chess, Chessboxing is particularly popular in Germany, Great Britain, Russia and France and now catching up fast in the Asian countries like China, Iran and India. AFP PHOTO/ Dibyangshu SARKAR (Photo credit should read DIBYANGSHU SARKAR/AFP/Getty Images)

In this photograph taken on June 28, 2015, Indian chessboxers play a round of chess during the boxing round of The National Chess Boxing Championships in Kolkata. Chessboxing is a hybrid sport combining the mental workout of chess with the physical challenge of boxing. A chessboxing fight consists of 11 rounds, 6 rounds of chess and 5 rounds of boxing. Chess and boxing rounds alternate, beginning and ending with a round of chess, Chessboxing is particularly popular in Germany, Great Britain, Russia and France and now catching up fast in the Asian countries like  China, Iran and India. AFP PHOTO/ Dibyangshu SARKAR        (Photo credit should read DIBYANGSHU SARKAR/AFP/Getty Images)