[Event "Interzonal-11a"]
[Site "Riga"]
[Date "1979.09.23"]
[Round "13"]
[White "Romanishin, Oleg M"]
[Black "Gruenfeld, Yehuda"]
[Result "1-0"]
[WhiteElo "2560"]
[BlackElo "2430"]

1. c4 Nf6 2. g3 g6 3. Bg2 Bg7 4. d4 O-O 5. Nf3 d6 6. O-O Nc6 7. Nc3 a6 8. b3 Rb8 9. Bb2 b5 10. cxb5 axb5 11. Rc1 Na5 12. Qc2 Bb7 13. Rfd1 Qd7 14. e4 b4 15. e5 bxc3 16. Bxc3 Bh6 17. exf6 Bxc1 18. Qxc1 Bxf3 19. Bxf3 Qf5 20. fxe7 Rfe8 21. Qe3 Rb6 22. d5 Nb7 23. g4 1-0