[Event "Vidmar Memorial-01"]
[Site "Ljubljana"]
[Date "1969.06.05"]
[Round "4"]
[White "Byrne, Robert Eugene"]
[Black "Robatsch, Karl"]
[Result "1/2-1/2"]

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 c6 6. e3 Be7 7. Qc2 Nbd7 8. Bd3 O-O 9. Nge2 Re8 10. O-O Nf8 11. Rab1 Ng6 12. Ng3 Bd6 13. b4 h6 14. Bxf6 Qxf6 15. b5 Ne7 16. bxc6 bxc6 1/2-1/2