[Event "Olympiad-19 Preliminaries A"]
[Site "Siegen"]
[Date "1970.09.08"]
[Round "4"]
[White "Andujar, Miguel"]
[Black "Espinoza, Carlos"]
[Result "1/2-1/2"]

1. c4 Nf6 2. g3 c6 3. Bg2 d5 4. cxd5 cxd5 5. d4 Nc6 6. Nf3 e6 7. O-O Be7 8. Nc3 O-O 9. b3 Bd7 10. Bb2 Rc8 11. e3 Qa5 12. a3 b5 13. b4 Qb6 14. Qd3 a6 15. e4 dxe4 16. Nxe4 Nxe4 17. Qxe4 Bf6 18. Ne5 Rfd8 19. Rac1 Nb8 20. Qb7 Qxb7 21. Bxb7 Rxc1 22. Rxc1 Be8 23. f4 h5 24. Kf2 g5 25. Ke3 gxf4+ 26. gxf4 Kf8 27. Ke4 Bg7 28. Ke3 Bh6 29. Rg1 f6 30. Nd3 1/2-1/2