[Event "Las Palmas-02"]
[Site "Las Palmas"]
[Date "1973.04.18"]
[Round "13"]
[White "Darga, Klaus"]
[Black "Calvo Minguez, Ricardo"]
[Result "1/2-1/2"]

1. c4 e5 2. Nc3 Nc6 3. g3 f5 4. Bg2 Nf6 5. d3 Bb4 6. Bd2 O-O 7. Nf3 d6 8. O-O a5 9. Rc1 Kh8 10. Nd5 Be6 11. Bg5 Ne7 12. Nxe7 Qxe7 13. d4 exd4 14. Nxd4 c6 15. e3 h6 16. Bxf6 Rxf6 17. Nxe6 1/2-1/2