[Event "Olympiad-18 Preliminaries C"]
[Site "Lugano"]
[Date "1968.10.20"]
[Round "3"]
[White "Feller, Joseph"]
[Black "Ivkov, Borislav"]
[Result "1/2-1/2"]

1. e4 g6 2. d4 Bg7 3. f4 d6 4. Nf3 c5 5. c3 Qc7 6. Bd3 cxd4 7. cxd4 Bg4 8. Bb5+ Nd7 9. Be3 Nf6 10. Nc3 O-O 11. O-O Qb6 12. Qe2 a6 13. Ba4 Qa5 14. Bb3 e5 15. Rad1 Nh5 16. dxe5 dxe5 17. f5 Ndf6 18. fxg6 hxg6 19. Qf2 Rac8 20. h3 1/2-1/2