As mentioned above, Fischer (in 1972) and Kramnik (in 2006) each forfeited a world championship game without playing any moves. Other than those unplayed games, the shortest game in a world championship was the 21st match game in the World Chess Championship 1963 between Mikhail Botvinnik and Tigran Petrosian. The players agreed to a draw after the 10th move by White (Petrosian). The shortest decisive, non-forfeited world championship game occurred between Viswanathan Anand and Boris Gelfand in game 8 of the World Chess Championship 2012. Gelfand resigned after Anand's 17th move, 17.Qf2.