[Event "Olympiad-23"]
[Site "Buenos Aires"]
[Date "1978.10.25"]
[Round "1"]
[White "Zarco Castillo, Jose"]
[Black "Bronstein, Luis Marcos"]
[Result "1/2-1/2"]
[BlackElo "2400"]

1. Nf3 Nf6 2. c4 g6 3. d4 Bg7 4. Nc3 d5 5. g3 O-O 6. Bg2 dxc4 7. Ne5 c6 8. Nxc4 Be6 9. Ne5 Nbd7 10. Nd3 Nd5 11. e3 Nxc3 12. bxc3 Qa5 13. Bd2 Qf5 14. Nf4 Bc4 15. Bh3 Qa5 16. Bxd7 e5 17. Bg4 exf4 18. gxf4 f5 19. Be2 Bxe2 20. Qb3+ Kh8 21. Kxe2 Qa6+ 22. c4 Rfe8 23. Qd3 Rad8 24. Bc3 Re4 25. f3 Re7 26. e4 b5 27. cxb5 fxe4 28. fxe4 Qc8 29. e5 cxb5 30. Rhg1 Rf7 31. Raf1 Qe6 32. a3 a6 33. Rg3 Qa2+ 34. Qd2 Qc4+ 35. Qd3 Qa2+ 36. Bd2 Rfd7 37. Qb3 Qxb3 38. Rxb3 Rxd4 39. Be3 Rc4 40. Rc1 Rxc1 41. Bxc1 g5 42. Kf3 1/2-1/2