[Event "Arosa U20"]
[Site "Arosa SUI"]
[Date "1972.04.??"]
[EventDate "?"]
[Round "11"]
[Result "1/2-1/2"]
[White "Adolf Herzog"]
[Black "Leif Ogaard"]
[ECO "B25"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "104"]

1. Nc3 c5 2. e4 Nc6 3. Nf3 e6 4. Bc4 a6 5. a4 Nf6 6. Qe2 d6 7. O-O Be7 8. Re1  O-O 9. d3 b6 10. Bf4 Bb7 11. e5 dxe5 12. Bxe5 Bd6 13. Bxf6 Qxf6 14. Ne4 Qe7 15.  Nfg5 h6 16. Qh5 Nd8 17. Nxd6 Qxd6 18. Ne4 Bxe4 19. dxe4 Nc6 20. e5 Qc7 21. Rad1  Rfd8 22. Rxd8+ Rxd8 23. Bxa6 Nb4 24. Qe2 Nxa6 25. Qxa6 c4 26. g3 Rd5 27. Re4  Qc6 28. Qxc4 Rc5 29. Qd4 Rxc2 30. Re1 Rc4 31. Qd8+ Kh7 32. b3 Rc3 33. Qd6 Qf3  34. Qxb6 Rxb3 35. Qd4 Ra3 36. Qe4+ Qxe4 37. Rxe4 g5 38. f4 Ra2 39. fxg5 hxg5  40. Kf1 Rxh2 41. Ke1 Kg6 42. g4 f5 43. exf6 Kxf6 44. Rb4 Ke5 45. Kd1 Kd5 46.  Rb5+ Ke4 47. Rxg5 e5 48. Rg8 Ra2 49. Ra8 Rg2 50. Rb8 Kd3 51. Rd8+ Ke3 52. Rg8  Ra2 1/2-1/2