[Event "USA-ch"]
[Site "Estes Park"]
[Date "1985.??.??"]
[Round "9"]
[White "Kogan, Boris Markovich"]
[Black "Dlugy, Maxim"]
[Result "1/2-1/2"]
[WhiteElo "2500"]
[BlackElo "2485"]

1. c4 c5 2. g3 Nf6 3. Bg2 d5 4. cxd5 Nxd5 5. Nc3 Nc7 6. Qb3 Nc6 7. Bxc6+ bxc6 8. Qa4 Qd7 9. Nf3 f6 10. d3 e5 11. O-O Nb5 12. Be3 Nd4 13. Bxd4 1/2-1/2