[Event "Berlin op"]
[Site "Berlin West"]
[Date "1980.12.27"]
[Round "2"]
[White "Muse, Mladen"]
[Black "Lehmann, Rolf"]
[Result "1-0"]
[ECO "E81"]
[PlyCount "25"]
[EventDate "1980.12.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 d6 2. c4 Nf6 3. Nc3 g6 4. e4 Bg7 5. f3 0-0 6. Be3 Nbd7 7. Bd3 c5 8. Nge2 cxd4 9. Bxd4 Nc5 10. Bc2 a6 11. e5 Ne8 12. Bxc5 Bxe5 13. Bd4 1-0

[Event "Berlin op"]
[Site "Berlin West"]
[Date "1980.12.26"]
[Round "1"]
[White "Lehmann, Rolf"]
[Black "Oltmanns, Wilfried"]
[Result "1-0"]
[ECO "A17"]
[PlyCount "59"]
[EventDate "1980.12.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. c4 Nf6 2. g3 e6 3. Bg2 Nc6 4. Nc3 d6 5. f4 Bd7 6. e4 Nd4 7. Nf3 c5 8. 0-0 Be7 9. h3 Bc6 10. d3 Qb6 11. Kh2 h5 12. b3 0-0-0 13. Be3 Ng4+ 14. hxg4 hxg4+ 15. Nh4 Bxh4 16. gxh4 Rxh4+ 17. Kg3 Rdh8 18. Rh1 Qd8 19. Qd2 f5 20. Bxd4 cxd4 21. Nb5 Bxb5 22. cxb5 Rxh1 23. Rxh1 Rxh1 24. Bxh1 g6 25. Qc2+ Kb8 26. Qc4 e5 27. fxe5 dxe5 28. exf5 gxf5 29. Qf7 Qh8 30. Qxb7# 1-0

