[Event "US Open-90"]
[Site "Chicago"]
[Date "1989.??.??"]
[Round "4"]
[White "Harrison, William"]
[Black "Ronneberg, Erik"]
[Result "0-1"]
[ECO "C11"]
[PlyCount "32"]
[EventDate "1989.08.05"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. f4 c5 6. c3 Nc6 7. Ndf3 Qb6 8. Ne2 f6 9. f5 cxd4 10. fxe6 Ndxe5 11. Nxe5 fxe5 12. cxd4 Bb4+ 13. Bd2 Bxe6 14. dxe5 0-0 15. Bxb4 Nxb4 16. Nd4 Qxd4 0-1

