[Event "Dortmunder Schachtage-05"]
[Site "Dortmund"]
[Date "1977.05.20"]
[Round "2"]
[White "Castro Rojas, Oscar Humberto"]
[Black "Vadasz, Laszlo"]
[Result "1/2-1/2"]
[WhiteElo "2410"]
[BlackElo "2495"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O 6. Bd3 Nc6 7. O-O Bg4 8. Be3 e5 9. dxe5 dxe5 10. h3 exf4 11. Bxf4 Bxf3 12. Qxf3 Nd7 13. Nd5 Nce5 14. Qg3 c6 15. Ne3 Qe7 16. Rad1 Rad8 17. c3 Nxd3 18. Rxd3 Ne5 19. Rd4 Rfe8 20. Rfd1 Rxd4 21. cxd4 Nd7 22. e5 f6 23. Nc4 Qe6 24. Nd6 Rf8 25. Nxb7 fxe5 26. dxe5 Qf5 27. Qb3+ Kh8 28. Bg3 Nxe5 29. Nd6 Qd7 30. Nc4 Qf5 31. Nxe5 Bxe5 32. Bxe5+ Qxe5 33. Rd7 a5 34. Qc3 Qxc3 35. bxc3 Rf5 36. Ra7 1/2-1/2