[Event "Olympiad-17 Preliminaries A"]
[Site "Havana"]
[Date "1966.10.29"]
[Round "4"]
[White "Stein, Leonid"]
[Black "De Castro, Edgar"]
[Result "1/2-1/2"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. g4 d5 7. Bb5+ Bd7 8. Bxd7+ Qxd7 9. e5 Ne4 10. Nce2 Nc6 11. Nxc6 Qxc6 12. Nd4 Qa6 13. c3 Nc5 14. Qe2 Qxe2+ 15. Kxe2 h5 16. g5 g6 17. Nb5 Kd7 18. Be3 a6 19. Nd4 b5 20. Rhc1 Be7 1/2-1/2