[Event "6th olw final B"]
[Site "Medellin COL"]
[Date "1974.09.26"]
[Round "4"]
[White "Maeda, Hyroko JPN"]
[Black "O'Siochru, Dorren IRL"]
[Result "1-0"]
[ECO "D56"]
[EventDate "1974.09.15"]
[PlyCount "61"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 h6 7.Bh4 Ne4 8.Bxe7 
Qxe7 9.Bd3 Nxc3 10.bxc3 dxc4 11.Bxc4 b6 12.O-O Bb7 13.Be2 c5 14.Rb1 Nd7 
15.Bb5 Nf6 16.Bd3 Rac8 17.c4 Rfd8 18.Re1 Bxf3 19.Qxf3 cxd4 20.exd4 Rxd4 
21.Rbd1 Rcd8 22.Bf1 Qd6 23.Be2 Qb4 24.Ra1 Rd2 25.h3 Rxa2 26.Rxa2 Qxe1+ 27.
Kh2 Rd2 28.Bd3 Kf8 29.Rxa7 Rxf2 30.Qg3 Qd2 31.Qd6+ 1-0

