[Event "Vidmar Memorial-01"]
[Site "Ljubljana"]
[Date "1969.06.09"]
[Round "7"]
[White "Tringov, Georgi Petrov"]
[Black "Byrne, Robert Eugene"]
[Result "1/2-1/2"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. O-O Bd7 6. c3 Nf6 7. d4 Qe7 8. Re1 g6 9. Nbd2 Bg7 10. Nf1 O-O 11. Bg5 Qe8 12. dxe5 dxe5 13. Bxf6 Bxf6 14. Ne3 Bg7 15. Nd5 Rc8 16. b4 h6 17. Bb3 Nd8 18. Nd2 Ne6 19. Nc4 Kh7 20. Qf3 f6 21. Qe3 Rd8 22. Rad1 Bc8 23. Rd3 b5 24. Na5 f5 25. Red1 1/2-1/2