[Event "Olympiad-27"]
[Site "Dubai"]
[Date "1986.11.24"]
[Round "9"]
[White "Ayinla, JA"]
[Black "Grassi, Enrico"]
[Result "1/2-1/2"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 O-O 8. Ne2 c5 9. O-O cxd4 10. cxd4 Nc6 11. Be3 Na5 12. Bd3 Nc6 13. Rc1 Nxd4 14. Nxd4 Bxd4 15. Bxd4 Qxd4 1/2-1/2