[Event "World Championship 21th"] [Site "Moscow RUS"] [Date "1957.04.25"] [Round "21"] [White "Botvinnik, Mikhail M"] [Black "Smyslov, Vassily V"] [Result "1/2-1/2"] [ECO "D79"] [EventDate "1957.03.05"] 1.d4 Nf6 2.c4 g6 3.g3 c6 4.Bg2 d5 5.cxd5 cxd5 6.Nc3 Bg7 7.Nf3 O-O 8.Ne5 Bf5 9.O-O Ne4 10.Nxe4 Bxe4 11.f3 Bf5 12.Be3 Nd7 13.Nxd7 Qxd7 1/2-1/2