[Event "65th US Open"]
[Site "Boston, MA USA"]
[Date "1964.08.28"]
[EventDate "?"]
[Round "12"]
[Result "0-1"]
[White "Ariel Mengarini"]
[Black "George Shainswit"]
[ECO "B20"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "56"]

1.e4 c5 2.g3 d5 3.d4 dxe4 4.d5 Nf6 5.Nc3 Bg4 6.Qd2 h5 7.Bg2
Bf5 8.Nh3 h4 9.Ng5 hxg3 10.hxg3 Rxh1+ 11.Bxh1 Na6 12.Qf4 Bg6
13.Ngxe4 Nb4 14.Qd2 Nfxd5 15.Nxd5 Nxd5 16.Nxc5 e6 17.c4 Bxc5
18.cxd5 exd5 19.Qe2+ Kf8 20.Be3 d4 21.Bf4 d3 22.Qe5 Qb6
23.O-O-O Re8 24.Qd5 Bxf2 25.Qd6+ Qxd6 26.Bxd6+ Kg8 27.Bxb7
Be3+ 28.Kb1 d2+ 0-1