[Event "Amsterdam Interzonal"] [Site "Amsterdam NED"] [Date "1964.06.01"] [EventDate "1964.05.20"] [Round "10"] [Result "0-1"] [White "Yosef Porat"] [Black "Leonid Stein"] [ECO "A43"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "44"] 1.d4 c5 2.d5 Nf6 3.Nc3 d6 4.e4 g6 5.Nf3 Bg7 6.Bf4 O-O 7.Qd2 Qa5 8.Bd3 Bg4 9.Bh6 Bxh6 10.Qxh6 Bxf3 11.gxf3 Nbd7 12.h4 b5 13.h5 c4 14.hxg6 fxg6 15.Bf1 Ne5 16.Bh3 Nxf3+ 17.Kd1 Qb6 18.Ke2 b4 19.Be6+ Kh8 20.e5 Nh5 21.Ne4 Qd4 22.Qe3 Nf4+ 0-1