Unzicker, Wolfgang VS Olafsson, Fridrik 1960.06.23

[Event "Buenos Aires International"]
[Site "Buenos Aires"]
[Date "1960.06.23"]
[Round "1"]
[White "Unzicker, Wolfgang"]
[Black "Olafsson, Fridrik"]
[Result "1/2-1/2"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be2 Nf6 7. O-O a6 8. Be3 Bb4 9. Nxc6 bxc6 10. Qd4 c5 11. Qc4 Bb7 12. Bf3 Rc8 13. e5 1/2-1/2