Library/Openings/Benoni Defense/Fianchetto Variation/Hastings Defense ECO A63
Opening· 18 plies

Benoni Defense: Fianchetto Variation, Hastings Defense

An entry in the Encyclopedia of Chess Openings (ECO A63), reached after 18 half-moves: 1. d4 Nf6 2. c4 e6 3. g3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. Bg2 Bg7 8. Nf3 O-O 9. O-O Nbd7.

Benoni Defense: Fianchetto Variation, Hastings Defense ECO A63
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Black rook
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Black queen
Black rook
Black king
Black pawn
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Black knight
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Black knight
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White pawn
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White knight
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About this opening

Benoni Defense: Fianchetto Variation, Hastings Defense is an opening in the Encyclopedia of Chess Openings, classified under code A63. ECO group A (A00–A99) covers flank and irregular openings, including the English, Bird, Réti and Dutch defences. This particular variation is reached after 18 half-moves from the starting position, with the move sequence 1. d4 Nf6 2. c4 e6 3. g3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. Bg2 Bg7 8. Nf3 O-O 9. O-O Nbd7.

It belongs to the Benoni Defense family. Within that family this is a level-2 branch (the Fianchetto Variation → Hastings Defense line). The immediate parent line is Benoni Defense: Fianchetto Variation, transitioned via 9…Nbd7.

The opening sequence in prose form: 1.d4 Nf6, 2.c4 e6, 3.g3 c5, 4.d5 exd5, 5.cxd5 d6, 6.Nc3 g6. From this position exactly one named continuation is recorded in the encyclopaedia.