ECO A58 · Benko Gambit Accepted
Benko Gambit Accepted: Fully Accepted Variation
The position after 1.d4 Nf6 2.c4 c5 3.d5 b5 4.cxb5 a6 5.bxa6.
1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6
Benko Gambit Accepted: Fully Accepted Variation is filed under ECO A58, a variation of Benko Gambit Accepted. It is the position after 1.d4 Nf6 2.c4 c5 3.d5 b5 4.cxb5 a6 5.bxa6 — 9 half-moves in, with Black to move. Named theory ends here; beyond this the position is yours to work out.