[Event "World Championship 25th"] [Site "Moscow RUS"] [Date "1963.05.18"] [Round "21"] [White "Petrosian, Tigran V"] [Black "Botvinnik, Mikhail M"] [Result "1/2-1/2"] [ECO "A16"] [EventDate "1963.03.23"] 1.c4 Nf6 2.Nf3 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.dxc3 Qxd1+ 7.Kxd1 Bg4 8.Be2 Nd7 9.Be3 e5 10.Nd2 1/2-1/2