Library/Openings/King's Indian Defense/Fianchetto Variation/Pterodactyl Variation ECO E64
Opening· 10 plies

King's Indian Defense: Fianchetto Variation, Pterodactyl Variation

An entry in the Encyclopedia of Chess Openings (ECO E64), reached after 10 half-moves: 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 c5 5. Bg2 Qa5+.

King's Indian Defense: Fianchetto Variation, Pterodactyl Variation ECO E64
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Black rook
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Black king
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Black queen
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White pawn
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White rook
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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: Fianchetto Variation, Pterodactyl Variation is an opening in the Encyclopedia of Chess Openings, classified under code E64. 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 10 half-moves from the starting position, with the move sequence 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 c5 5. Bg2 Qa5+.

It belongs to the King's Indian Defense family. Within that family this is a level-2 branch (the Fianchetto Variation → Pterodactyl Variation line). The immediate parent line is King's Indian Defense: Fianchetto Variation, transitioned via 5…Qa5+.

The opening sequence in prose form: 1.d4 Nf6, 2.c4 g6, 3.Nf3 Bg7, 4.g3 c5, 5.Bg2 Qa5+. 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.