[Event "Interzonal-11a"]
[Site "Riga"]
[Date "1979.09.23"]
[Round "13"]
[White "Polugaevsky, Lev"]
[Black "Ljubojevic, Ljubomir"]
[Result "1/2-1/2"]
[WhiteElo "2625"]
[BlackElo "2590"]

1. d4 d5 2. Nf3 e6 3. c4 c6 4. Qc2 Nd7 5. g3 Ne7 6. Bg2 g6 7. O-O Bg7 8. e4 dxe4 9. Qxe4 O-O 10. Nc3 Nf5 11. Rd1 Qa5 12. Bf4 Qb4 13. Qe2 Nb6 14. c5 Nd5 15. Nxd5 exd5 16. a3 Qc4 17. Qd2 Re8 18. Rac1 Qb3 19. g4 Ne7 20. h3 b6 21. Re1 Be6 22. Be5 bxc5 23. Bxg7 Kxg7 24. Rxc5 Rab8 25. Ng5 Qxb2 26. Qf4 Rf8 27. Re3 Qd2 28. Qe5+ Kg8 29. Qf6 Rb1+ 30. Kh2 Nf5 31. gxf5 1/2-1/2