[Event "Olympiad-23"]
[Site "Buenos Aires"]
[Date "1978.10.25"]
[Round "1"]
[White "Zainal, Abdul"]
[Black "Zapata, Alonso"]
[Result "0-1"]
[BlackElo "2355"]

1. b3 Nf6 2. Bb2 d5 3. e3 g6 4. g3 Bg7 5. Bg2 O-O 6. c4 c6 7. Ne2 Re8 8. d4 dxc4 9. bxc4 e5 10. O-O e4 11. Nd2 Bf5 12. Rb1 Nbd7 13. Nc3 c5 14. Nb5 Qb8 15. Qb3 a6 16. Na3 Qc7 17. Ba1 Rab8 18. Rfc1 h5 19. h4 Re6 20. Qc2 Bh6 21. Qc3 cxd4 22. Qxd4 Rd6 23. Qc3 Rd3 24. Qb2 Kh7 25. c5 Rd8 26. Nac4 Qxc5 27. Qxb7 Qd5 28. Bf1 Ng4 29. Bxd3 Qxd3 30. Qa7 Rg8 31. a4 g5 32. Qd4 Qe2 33. Rf1 Ngf6 34. Rfe1 Qg4 35. Ne5 Nxe5 36. Qxe5 Rg6 37. Qc7 gxh4 38. Qxf7+ Bg7 39. Be5 Qh3 40. Re2 Ng4 41. f3 Nxe5 0-1