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Rameshbabu Praggnanandhaa, also known as R Praggnanandhaa, is an Indian chess grandmaster. He was born on 10 August 2005 in Chennai, Tamil Nadu, India. Praggnanandhaa started playing chess at the age of three. He won the World Under-8 Championship in 2013 and the World Under-10 Championship in 2015. In 2016, he became the youngest Indian to achieve the title of Grandmaster at the age of 12 years and 7 months.