[Event "Capablanca Memorial-10"]
[Site "Cienfuegos"]
[Date "1973.03.03"]
[Round "10"]
[White "De Greif, Boris"]
[Black "Diaz Diaz, Joaquin Carlos"]
[Result "1-0"]

1. Nf3 c5 2. g3 Nc6 3. Bg2 g6 4. O-O Bg7 5. d3 e6 6. Nc3 Nge7 7. Ne4 d6 8. Bg5 f5 9. Nc3 h6 10. Bd2 O-O 11. e4 d5 12. exd5 exd5 13. Re1 b6 14. Bf4 g5 15. Be5 Nxe5 16. Nxe5 Bb7 17. f4 gxf4 18. gxf4 Kh7 19. Qh5 Rb8 20. d4 cxd4 21. Nb5 d3 22. Nf7 Qd7 23. Nbd6 dxc2 24. Re6 Rxf7 25. Qxf7 Qc6 26. Rc1 Qc5+ 27. Kh1 Rf8 28. Qxe7 d4 29. Bxb7 d3 30. Nc4 Qxc4 31. Rg1 Qd4 32. Rxh6+ Kg8 33. Rhg6 Rf7 34. Qe8+ Rf8 35. Qe6+ Rf7 36. Bd5 1-0