[Event "Capablanca Memorial-10"]
[Site "Cienfuegos"]
[Date "1973.03.18"]
[Round "21"]
[White "Diaz Diaz, Joaquin Carlos"]
[Black "Spassov, Liuben"]
[Result "0-1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 Nc6 5. Bb5 Bd7 6. Bxc6 Bxc6 7. Nc3 Nf6 8. Bg5 e6 9. O-O-O Be7 10. Rhe1 O-O 11. e5 dxe5 12. Qxe5 Nd7 13. Qg3 Bxg5+ 14. Nxg5 Qf6 15. f4 Nb6 16. Re5 Qg6 17. h4 h5 18. f5 exf5 19. Ne2 Rad8 20. Nd4 Qd6 21. Rd3 Nc4 22. Nxc6 Qxc6 23. Rxf5 Qb6 0-1