[Event "World Championship 21th"] [Site "Moscow RUS"] [Date "1957.04.20"] [Round "19"] [White "Botvinnik, Mikhail M"] [Black "Smyslov, Vassily V"] [Result "1/2-1/2"] [ECO "A36"] [EventDate "1957.03.05"] 1.c4 g6 2.Nc3 c5 3.g3 Bg7 4.Bg2 Nc6 5.e3 e6 6.Nge2 Nge7 7.d4 cxd4 8.Nxd4 d5 9.cxd5 Nxd4 10.exd4 Nxd5 11.O-O O-O 12.Qb3 Qb6 13.Nxd5 exd5 14.Bxd5 Qxb3 15.Bxb3 Bxd4 1/2-1/2