[Event "Capablanca Memorial-02"]
[Site "Havana"]
[Date "1963.08.25"]
[Round "1"]
[White "Ortega, Rogelio"]
[Black "De Greif, Boris"]
[Result "1-0"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Ne1 Nd7 10. Nd3 f5 11. exf5 gxf5 12. f4 Nf6 13. Be3 Ng6 14. fxe5 dxe5 15. Qd2 f4 16. Bc5 Re8 17. Rae1 Bf5 18. Bd1 Bh6 19. Nf2 Nd7 20. Ba3 Qh4 21. Bf3 Bf8 22. Bxf8 Rxf8 23. Nce4 Kh8 24. Kh1 Rg8 25. Qc3 Qe7 26. Nd3 Rg7 27. c5 Re8 28. b4 Nf6 29. d6 Qe6 30. Ng5 Qxa2 31. Nxe5 Nxe5 32. Rxe5 Qc2 33. Rxe8+ Nxe8 34. Nf7+ Kg8 35. Qxc2 Bxc2 36. d7 1-0