Library/Openings/King's Indian Defense/Orthodox Variation/Classical System/Kozul Gambit ECO E98
Opening· 27 plies

King's Indian Defense: Orthodox Variation, Classical System, Kozul Gambit

An entry in the Encyclopedia of Chess Openings (ECO E98), reached after 27 half-moves: 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Ne1 Nd7 10. Be3 f5 11. f3 f4 12. Bf2 g5 13. Rc1 Ng6 14. c5.

King's Indian Defense: Orthodox Variation, Classical System, Kozul Gambit ECO E98
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Black rook
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Black queen
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Black king
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Black knight
White pawn
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White pawn
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End of this line

No further variations branch from this position in our database. To explore neighbouring ideas:

About this opening

King's Indian Defense: Orthodox Variation, Classical System, Kozul Gambit is an opening in the Encyclopedia of Chess Openings, classified under code E98. ECO group E (E00–E99) covers Indian defences against 1.d4, covering the Nimzo-Indian, Queen's Indian, King's Indian and Catalan systems. This particular variation is reached after 27 half-moves from the starting position, with the move sequence 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Ne1 Nd7 10. Be3 f5 11. f3 f4 12. Bf2 g5 13. Rc1 Ng6 14. c5.

It belongs to the King's Indian Defense family. Within that family this is a level-3 branch (the Orthodox Variation → Classical System → Kozul Gambit line). The immediate parent line is King's Indian Defense: Orthodox Variation, Classical System, transitioned via 14.c5.

The opening sequence in prose form: 1.d4 Nf6, 2.c4 g6, 3.Nc3 Bg7, 4.e4 d6, 5.Nf3 O-O, 6.Be2 e5. From this position the encyclopaedia records no further canonical continuations — practical play branches into unnamed transpositions or returns to the parent line for alternative ideas.