[Event "Zuerich op-B 28th"]
[Site "Zuerich"]
[Date "2004.12.??"]
[Round "2"]
[White "Sonnenberg, Ivo"]
[Black "Grunder, Juerg"]
[Result "1-0"]
[ECO "A51"]
[BlackElo "1767"]
[PlyCount "37"]
[EventDate "2004.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e5 3. dxe5 Ne4 4. a3 Qh4 5. g3 Qh5 6. Bg2 Qxe5 7. Nf3 Qh5 8. Qd3 Nc5 9. Qe3+ Be7 10. b4 Ne6 11. Bb2 Nc6 12. Nbd2 0-0 13. 0-0 d6 14. Rac1 Bd7 15. Rfd1 Rfe8 16. Ne4 Bf8 17. Rd5 Qh6 18. Qxh6 gxh6 19. Nf6+ 1-0

