[Event "Rubinstein Memorial-05"]
[Site "Polanica Zdroj"]
[Date "1967.08.17"]
[Round "6"]
[White "Kostro, Jerzy"]
[Black "Ortega, Rogelio"]
[Result "1/2-1/2"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Bxc6 dxc6 7. d3 Nd7 8. Nbd2 O-O 9. Nc4 Bf6 10. Bd2 Re8 11. Bc3 c5 12. a4 b6 13. h3 Rb8 14. b3 Re6 15. Qd2 h6 16. Ne3 Bg5 17. Nxg5 hxg5 18. Ng4 Qe7 19. Qe3 Nf8 20. Bd2 Rg6 21. Qg3 Bxg4 22. hxg4 a5 23. Be3 Qd6 24. f3 Ne6 25. Qf2 Nf4 26. Bxf4 exf4 27. Rab1 Rd8 28. Rfe1 1/2-1/2