[Event "Siegen olm"]
[Site "Siegen"]
[Date "1970.??.??"]
[Round "9"]
[White "Naranja, Renato"]
[Black "Portisch, Lajos"]
[Result "0-1"]
[WhiteElo ""]
[BlackElo ""]
[ECO "D87"]

1.c4 Nf6 2.d4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4 c5 8.Ne2 Nc6
9.Be3 O-O 10.h4 cxd4 11.cxd4 Qd6 12.Rc1 Rd8 13.d5 Ne5 14.Qb3 Bd7 15.f3 b5
16.Bd3 Qb4+  0-1

