[Event "Niemeyer Juniors Prelim"]
[Site "Groningen NED"]
[Date "1967.12.28"]
[EventDate "1967.12.27"]
[Round "2"]
[Result "1-0"]
[White "Anatoly Karpov"]
[Black "Karl-Heinz Siegfried Maeder"]
[ECO "A07"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "61"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Nge2 e5
7. Nd5 Nge7 8. Ne3 Be6 9. O-O O-O 10. Nc3 Rb8 11. Ncd5 Bxd5
12. exd5 Nd4 13. a4 Ndf5 14. Nc4 h5 15. Bd2 Nh6 16. b4 Ng4
17. Rb1 Nf6 18. Bg5 cxb4 19. Rxb4 Qd7 20. Bxf6 Bxf6 21. a5 h4
22. c3 Kg7 23. Qb3 Rh8 24. Rb1 hxg3 25. hxg3 Qf5 26. Nxd6 Qxd3
27. Nxb7 Rbc8 28. c4 Qe2 29. Nd6 Rcd8 30. Ne4 Qh5 31. Qf3 1-0