[Event "Interzonal-10b"]
[Site "Manila"]
[Date "1976.07.10"]
[Round "19"]
[White "Gheorghiu, Florin"]
[Black "Mariotti, Sergio"]
[Result "1/2-1/2"]
[WhiteElo "2540"]
[BlackElo "2470"]

1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 d5 5. cxd5 Nxd5 6. Bg2 Nb6 7. O-O Be7 8. d3 O-O 9. a3 a5 10. Be3 Be6 11. Na4 Nd5 12. Bc5 b6 13. Bxe7 Ndxe7 14. b4 axb4 15. axb4 Qd6 16. b5 Na5 17. Nc3 Qb4 18. Qc2 Nb3 19. Qb2 Rxa1 20. Rxa1 Qc5 21. Rb1 Nd4 22. Ne4 Nxf3+ 23. Bxf3 Qd4 24. Qxd4 exd4 25. Rb4 Rd8 26. Nd2 f5 1/2-1/2