Library/Openings/English Opening/Symmetrical Variation/Hedgehog Defense ECO A30
Opening· 12 plies

English Opening: Symmetrical Variation, Hedgehog Defense

An entry in the Encyclopedia of Chess Openings (ECO A30), reached after 12 half-moves: 1. c4 e6 2. Nf3 Nf6 3. Nc3 c5 4. g3 b6 5. Bg2 Bb7 6. O-O Be7.

English Opening: Symmetrical Variation, Hedgehog Defense ECO A30
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Black rook
Black knight
Black queen
Black king
Black rook
Black pawn
Black bishop
Black pawn
Black bishop
Black pawn
Black pawn
Black pawn
Black pawn
Black pawn
Black knight
Black pawn
White pawn
White knight
White knight
White pawn
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White pawn
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White pawn
White bishop
White pawn
White rook
White bishop
White queen
White rook
White king
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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

English Opening: Symmetrical Variation, Hedgehog Defense is an opening in the Encyclopedia of Chess Openings, classified under code A30. ECO group A (A00–A99) covers flank and irregular openings, including the English, Bird, Réti and Dutch defences. This particular variation is reached after 12 half-moves from the starting position, with the move sequence 1. c4 e6 2. Nf3 Nf6 3. Nc3 c5 4. g3 b6 5. Bg2 Bb7 6. O-O Be7.

It belongs to the English Opening family. Within that family this is a level-2 branch (the Symmetrical Variation → Hedgehog Defense line). The immediate parent line is English Opening: Symmetrical Variation, transitioned via 6…Be7.

The opening sequence in prose form: 1.c4 e6, 2.Nf3 Nf6, 3.Nc3 c5, 4.g3 b6, 5.Bg2 Bb7, 6.O-O Be7. 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.