Benko Gambit Accepted

An entry in the Encyclopedia of Chess Openings (ECO A57), reached after 8 half-moves: 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6.

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5.bxa6 5 lines
5.b6 1 line
- A57 Pawn Return Variation
5.e3 1 line
- A57 Modern Variation
5.f3 1 line
- A57 Dlugy Variation

About this opening

Benko Gambit Accepted is an opening in the Encyclopedia of Chess Openings, classified under code A57. ECO group A (A00–A99) covers flank and irregular openings, including the English, Bird, Réti and Dutch defences. This particular variation is reached after 8 half-moves from the starting position, with the move sequence 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6.

The opening sequence in prose form: 1.d4 Nf6, 2.c4 c5, 3.d5 b5, 4.cxb5 a6. From this position 4 named continuations are recorded in the encyclopaedia, each leading to a distinct theoretical line.