[Event "Interzonal-13c"]
[Site "Biel"]
[Date "1985.07.20"]
[Round "13"]
[White "Seirawan, Yasser"]
[Black "Ljubojevic, Ljubomir"]
[Result "1/2-1/2"]
[WhiteElo "2570"]
[BlackElo "2615"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. a3 Bxc3+ 6. Qxc3 b6 7. Nf3 Bb7 8. e3 Ne4 9. Qc2 f5 10. b4 Qe7 11. Bd3 a5 1/2-1/2