[Event "Olympiad-23"]
[Site "Buenos Aires"]
[Date "1978.11.10"]
[Round "14"]
[White "Langeweg, Kick"]
[Black "Vaganian, Rafael A"]
[Result "1/2-1/2"]
[WhiteElo "2445"]
[BlackElo "2570"]

1. Nf3 d5 2. d4 c6 3. c4 e6 4. Qc2 f5 5. g3 Nf6 6. Bg2 Be7 7. O-O O-O 8. Nbd2 Qe8 9. Ne5 b6 10. Ndf3 Ne4 11. Nd3 Bb7 12. b4 Nd7 13. Rb1 Ba6 14. b5 cxb5 15. cxb5 Rc8 16. Qb2 Bb7 17. Bd2 Nxd2 18. Qxd2 Nf6 19. Rb3 Ne4 20. Qb2 Rc7 21. Nfe5 Qc8 22. f3 Nd6 23. Rc1 Rxc1+ 24. Nxc1 Nc4 25. Nxc4 Qxc4 26. Nd3 Rc8 27. Bf1 Bd6 28. Kf2 g5 29. e3 Qc2+ 30. Be2 Qc7 31. f4 h6 32. Ke1 gxf4 33. gxf4 Kh7 34. Bf1 Qe7 35. Qf2 Rc4 36. Qg3 Rc2 37. Rb2 Rxb2 38. Nxb2 Qc7 39. Nd3 Qc2 40. Be2 Qc7 1/2-1/2