[Event "Las Palmas-09"]
[Site "Las Palmas"]
[Date "1980.06.13"]
[Round "4"]
[White "Andersson, Ulf"]
[Black "Petrosian, Tigran V"]
[Result "1/2-1/2"]
[WhiteElo "2590"]
[BlackElo "2615"]

1. c4 e6 2. Nf3 Nf6 3. g3 b6 4. Bg2 Bb7 5. O-O Be7 6. d4 O-O 7. Nc3 Ne4 8. Nxe4 Bxe4 9. Ne1 1/2-1/2