A57 · Benko Gambit Declined: Bishop Attack

Benko Gambit Declined: Sosonko Variation

1. d4 Nf6 2. c4 c5 3. d5 b5 4. a4
♜♞♝♛♚♝♜♟♟♟♟♟♟♞♟♟♟♟♟♟♟♟♟♟♜♞♝♛♚♝♞♜
The position after 1. d4 Nf6 2. c4 c5 3. d5 b5 4. a4, Black to move.

In the Benko Gambit Declined: Sosonko Variation, aim to understand the plans and pawn structures, not just memorize the first moves.

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The Benko Gambit Declined: Sosonko Variation is a chess opening classified under ECO code A57. It is reached after the moves 1. d4 Nf6 2. c4 c5 3. d5 b5 4. a4: 7 moves in, with Black to play.

It belongs to the Benko Gambit Declined family — one of many ways the line can branch. Understanding the parent system’s plans is the fastest way to play this variation well.

Club players rarely lose the Benko Gambit Declined: Sosonko Variation in the opening itself. They lose it a few moves later, when the plan behind the moves runs out: that is what reading your own games in this line shows you.

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Related openings

Benko GambitBenko Gambit AcceptedBenko Gambit Accepted: Dlugy VariationBenko Gambit Accepted: Modern VariationBenko Gambit Accepted: Pawn Return VariationBenko Gambit Declined: Bishop AttackBenko Gambit Declined: Hjørring CountergambitBenko Gambit Declined: Main LineBenko Gambit Declined: Pseudo-SämischBenko Gambit Declined: Quiet Line

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