[Event "Vidmar Memorial-02"]
[Site "Ljubljana/Portoroz"]
[Date "1973.04.22"]
[Round "15"]
[White "Ivkov, Borislav"]
[Black "Radulov, Ivan"]
[Result "1/2-1/2"]

1. c4 Nf6 2. Nf3 e6 3. g3 Be7 4. Bg2 O-O 5. O-O d5 6. b3 c6 7. Bb2 Nbd7 8. d3 b6 9. Nbd2 Bb7 10. e4 Rc8 11. Qe2 Rc7 12. e5 Ne8 13. h4 Nc5 14. Rad1 Rd7 15. d4 Na6 16. cxd5 cxd5 17. a3 Nb8 18. Rfe1 Rc7 19. Rc1 Qd7 20. Bf1 Ba6 21. Qe3 g6 22. Bxa6 Nxa6 23. Qd3 Nb8 24. Nb1 Nc6 25. Rc2 Ng7 26. Rec1 Rfc8 1/2-1/2