King's Indian Attack: Omega-Delta Gambit

An entry in the Encyclopedia of Chess Openings (ECO A07), reached after 4 half-moves: 1. Nf3 d5 2. g3 e5.

Black rook — Use ← → arrows or click moves to step through.

Black knight — Use ← → arrows or click moves to step through.

End of this line

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

About this opening

King's Indian Attack: Omega-Delta Gambit is an opening in the Encyclopedia of Chess Openings, classified under code A07. ECO group A (A00–A99) covers flank and irregular openings, including the English, Bird, Réti and Dutch defences. This particular variation is reached after 4 half-moves from the starting position, with the move sequence 1. Nf3 d5 2. g3 e5.

It belongs to the King's Indian Attack family. Within that family this is a sub-variation (the Omega-Delta Gambit line).

The opening sequence in prose form: 1.Nf3 d5, 2.g3 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.