[Event "Vidmar Memorial-01"]
[Site "Ljubljana"]
[Date "1969.06.10"]
[Round "8"]
[White "Unzicker, Wolfgang"]
[Black "Tringov, Georgi Petrov"]
[Result "1/2-1/2"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O 6. e5 Nfd7 7. Bc4 Nb6 8. Bb3 Nc6 9. Be3 Na5 10. Qe2 Nxb3 11. axb3 f6 12. O-O c6 13. h3 Be6 14. Bf2 Qd7 15. Rfe1 fxe5 16. fxe5 1/2-1/2