[Event "Interzonal-09a"]
[Site "Leningrad"]
[Date "1973.06.05"]
[Round "3"]
[White "Estevez Morales, Guillermo"]
[Black "Tal, Mihail"]
[Result "1-0"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 a6 7. a4 Qc7 8. Be3 b6 9. f4 Bb7 10. Bf3 Nbd7 11. Qe2 Be7 12. O-O O-O 13. Kh1 Nc5 14. Bf2 d5 15. exd5 Nxd5 16. Bxd5 exd5 17. Qg4 Bf6 18. Nf5 Ne6 19. Bh4 Bxh4 20. Qxh4 Rfe8 21. Rad1 Qc5 22. Qg3 Kh8 23. Ne2 Qf8 24. Ned4 Nc5 25. Qh4 Re4 26. Ng3 Qe7 27. Qg4 Bc8 28. Qh5 g6 29. Qh6 Bg4 30. Nxe4 Qxe4 31. Rfe1 Bxd1 32. Rxe4 Nxe4 33. f5 Re8 34. fxg6 fxg6 35. Ne6 Rg8 36. Qf4 h5 37. Qh6# 1-0