Kogan, Boris vs De Firmian, Nick
Estes Park ch-USA · Round 1 · 1987.01.01 · 1/2-1/2 · A46 Indian Defense: Knights Variation
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PGN
[Event "Estes Park ch-USA"] [Site "Estes Park ch-USA"] [Date "1987.01.01"] [Round "1"] [White "Kogan, Boris"] [Black "De Firmian, Nick"] [Result "1/2-1/2"] [PlyCount "42"] [WhiteElo "2235"] [WhiteFideId "2804352"] [BlackElo "2500"] [BlackFideId "2000105"] [BlackTitle "GM"] [ECO "A46n"] [Source "MillionBase2.9"] [SourceQuality "4"] [ImportDate "2026-01-06"] 1. d4 Nf6 2. Nf3 e6 3. g3 b5 4. Bg2 Bb7 5. O-O c5 6. c3 Be7 7. Bg5 Qb6 8. Nbd2 cxd4 9. cxd4 Nc6 10. e3 h6 11. Bxf6 Bxf6 12. Rc1 d6 13. Ne4 Be7 14. Nc3 d5 15. Ne1 O-O 16. Nd3 Rac8 17. Qg4 Bd6 18. Rfd1 Qa5 19. a3 b4 20. axb4 Nxb4 21. Ra1 Qd8 1/2-1/2