[Event "Interzonal-11a"]
[Site "Riga"]
[Date "1979.09.09"]
[Round "4"]
[White "Polugaevsky, Lev"]
[Black "Rodriguez, Ruben"]
[Result "1-0"]
[WhiteElo "2625"]

1. c4 c5 2. Nf3 Nf6 3. d4 cxd4 4. Nxd4 b6 5. Nc3 Bb7 6. f3 Nc6 7. e4 e6 8. Be3 Be7 9. Be2
O-O 10. O-O d6 11. Qd2 Ne5 12. Rfd1 a6 13. Rac1 Ned7 14. Bf1 Qc7 15. Qf2 Rab8 16. b4 Ba8
17. Nb3 Qb7 18. Bf4 e5 19. Be3 d5 20. Nxd5 Nxd5 21. cxd5 Bxb4 22. Qe2 a5 23. a4 Rbc8 24.
Qb2 Qb8 25. Bb5 Qd6 26. Rxc8 Rxc8 27. Rc1 Rxc1+ 28. Qxc1 Nc5 29. Nd2 f6 30. Nc4 Qd8 31.
Qd1 Bb7 32. d6 Nd7 33. h4 h5 34. Kf1 g6 35. Qd3 Kg7 36. Bc1 Nf8 37. d7 Ne6 38. Nd6 Ba8 39.
Bh6+ Kh7 40. Be3 Qc7 41. Ne8 Qd8 42. Qc4 1-0