[Event "wch u16b"]
[Site "Innsbruck AUT"]
[Date "1987.05.??"]
[EventDate "?"]
[Round "4"]
[Result "1/2-1/2"]
[White "Pontus Sjoedahl"]
[Black "de la Riva, Oscar"]
[ECO "A56"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "44"]

1. d4 Nf6 2. c4 c5 3. d5 a6 4. Nf3 b5 5. Qc2 e6 6. e4 bxc4 7. Nc3 Bb7 8.
Bxc4 exd5 9. Bxd5 Bxd5 10. Nxd5 Nxd5 11. exd5 d6 12. b4 Be7 13. O-O O-O 14.
bxc5 dxc5 15. Rd1 Bf6 16. Bb2 Nd7 17. Rab1 Rb8 18. Bxf6 Qxf6 19. Rxb8 Rxb8
20. Qa4 Qd6 21. h3 h6 22. a3 Nf6 1/2-1/2