[Event "Vancouver op"]
[Site "Vancouver"]
[Date "1975.05.20"]
[Round "5"]
[White "Ziegler, Rick"]
[Black "Jackson, Jack"]
[Result "1-0"]
[ECO "A30"]
[PlyCount "57"]
[EventDate "1975.05.17"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "CAN"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. Nf3 c5 2. c4 e6 3. g3 b6 4. Bg2 Bb7 5. 0-0 Nf6 6. Nc3 Be7 7. d4 d5 8. cxd5 Nxd5 9. Nxd5 Bxd5 10. Be3 Nd7 11. Rc1 0-0 12. Qc2 f5 13. b3 a6 14. Rcd1 g5 15. dxc5 Nxc5 16. Rxd5 exd5 17. Rd1 Ne4 18. Qc6 Qd6 19. Qxd6 Bxd6 20. Nxg5 h6 21. Nxe4 fxe4 22. Rxd5 Bc5 23. Bxc5 bxc5 24. Bxe4 Rac8 25. Rd6 Kg7 26. Rg6+ Kf7 27. Rxh6 Rcd8 28. Bd3 Kg7 29. Rxa6 1-0

