Benko Gambit: Fianchetto Variation

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 Bxa6 6. Nc3 d6 7. Nf3 g6 8. g3

Benko Gambit: Fianchetto Variation after 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 Bxa6 6. Nc3 d6 7. Nf3 g6 8. g3 87654321abcdefgh

The Benko Gambit: Fianchetto Variation is a chess opening classified as ECO A58, reached after 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 Bxa6 6. Nc3 d6 7. Nf3 g6 8. g3. It is a line of the Benko Gambit. Black is to move.

In 12.6 million rated Lichess games (blitz and slower), this position was reached 73 times by this move order. White won 48%, 5% were drawn and Black won 47%. The most popular continuation is 8… Bg7 (96% of games).

Engine evaluation: +0.60 (Stockfish, depth 30; best line 8… Bg7 9. Bg2 Nbd7 10. O-O Nb6 11. a4)

ECO
A58
Moves
15 plies
FEN
rn1qkb1r/4pp1p/b2p1np1/2pP4/8/2N2NP1/PP2PP1P/R1BQKB1R b KQkq - 0 8
PGN
1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 Bxa6 6. Nc3 d6 7. Nf3 g6 8. g3

Analyse with Stockfish · Board image (SVG) · Open on Lichess

Results by rating

Average ratingGamesWhite / draw / Black
0-14991100%
1500-19992544%48%
2000+4749%47%
All7348%47%

Most played moves

MoveGamesWhite / draw / Black
8… Bg770 (96%)46%49%
8… Nbd73 (4%)100%

Master games

151 over-the-board games are classified under this line (White 49%, draw 20%, Black 31%). The strongest:

Search all games of the Benko Gambit: Fianchetto Variation and its sub-variations

Highest-rated Lichess games

Comes from

Benko Gambit Accepted: Fully Accepted Variation 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6

More Benko Gambit lines (all)

Opening names and moves from the Lichess openings dataset; statistics from the Lichess open database, 2026-09 (CC0), sample of 12.6 million games, bots excluded; evaluations from Lichess cloud analysis (all CC0). Master games from The Week in Chess #920–#1664 by Mark Crowther, used with permission.