[Event "Wch U20 f-A"]
[Site "Athens GRE"]
[Date "1971.08.02"]
[EventDate "1971.08.02"]
[Round "1"]
[Result "1-0"]
[White "Kenneth S Rogoff"]
[Black "Ivan Hausner"]
[ECO "B51"]
[WhiteElo "2425"]
[BlackElo "?"]
[Source "Olimpbase"]
[PlyCount "105"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Nd7 4.d4 Nf6 5.Nc3 cxd4 6.Qxd4 g6
7.Bg5 Bg7 8.Qd2 O-O 9.Bh6 Nc5 10.Bxg7 Kxg7 11.Bd3 Bg4 12.Nd4
e5 13.Nb3 Rc8 14.Qe3 Be6 15. Rd1 Qb6 16.Nxc5 dxc5 17.Qc1 Rfd8
18.O-O Rd4 19.Rfe1 Bg4 20.Be2 Bxe2 21. Rxe2 Rcd8 22.Rde1 c4
23.Nb1 Qd6 24.f3 Nh5 25.g3 Nf6 26.Kg2 b5 27.Nc3 Qc6 28.a3 a5
29.Qg5 Qc5 30.Qe3 b4 31.axb4 axb4 32.Na2 Qb5 33.Nxb4 R4d6
34.c3 Nd7 35.Rd2 Nc5 36.Red1 Nd3 37.Nxd3 cxd3 38.b4 Qc4 39.Qc5
Qe6 40.b5 Rc8 41. Qb4 Rc4 42.Qb3 f5 43.Rxd3 Rxd3 44.Rxd3 fxe4
45.fxe4 Qc8 46.Rf3 Kh6 47.b6 Rxe4 48.b7 Qc6 49.Qb2 Qc4 50.b8=Q
Re2+ 51.Qxe2 Qxe2+ 52.Rf2 Qe4+ 53.Kh3 1-0