[Event "East German Championship"]
[Site "Erfurt GDR"]
[Date "1973.02.??"]
[EventDate "?"]
[Round "18"]
[Result "1/2-1/2"]
[White "Hans Ulrich Gruenberg"]
[Black "Heinz Liebert"]
[ECO "D87"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "48"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bb5+ c6 8.  Bc4 O-O 9. Ne2 c5 10. O-O Nc6 11. Be3 Qc7 12. Rc1 Rd8 13. Bf4 Qd7 14. dxc5 Qe8  15. Bd5 Bd7 16. Bg5 Na5 17. Qd2 Bb5 18. Qe3 Bc4 19. Rfd1 Rdc8 20. c6 bxc6 21.  Bxc4 Nxc4 22. Qc5 Nd6 23. Kh1 Rab8 24. Rb1 1/2-1/2