Tennis and chess: time to retire for Federer and Kasparov

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I wonder why everyone wants me to retire! - ChessBase India

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Tennis and chess: time to retire for Federer and Kasparov?

Is it possible to win a game of chess without capturing any pieces? - Quora

Tennis and chess: time to retire for Federer and Kasparov?

There are rumors (yes, maybe unfounded) that Magnus Carlsen will retire from chess. What do you think? Is this possible? - Quora

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