English Defense: Hartlaub Gambit Accepted

1. c4 e6 2. d4 b6 3. Nc3 Bb7 4. e4 f5 5. exf5 Nf6

The English Defense: Hartlaub Gambit Accepted is a chess opening classified as ECO A40, reached after 1. c4 e6 2. d4 b6 3. Nc3 Bb7 4. e4 f5 5. exf5 Nf6. It is a line of the English Defense. White is to move.

This exact move order didn't appear in our sample of 12.6 million Lichess games: it's a rare line.

Engine evaluation: +1.63 (Stockfish, depth 32; best line 6. fxe6 dxe6 7. Nf3 Bd6 8. Bd3 O-O)

ECO

A40

Moves

10 plies

FEN

rn1qkb1r/pbpp2pp/1p2pn2/5P2/2PP4/2N5/PP3PPP/R1BQKBNR w KQkq - 1 6

PGN

1. c4 e6 2. d4 b6 3. Nc3 Bb7 4. e4 f5 5. exf5 Nf6

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

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.