A13

English Opening: Agincourt Defense, Bogoljubow Defense

Chess diagram: English Opening: Agincourt Defense, Bogoljubow Defense after 4…Bd6

Type a move and press Enter: e4, Nf3, O-O, or from and to squares like g1f3 (e7e8q to promote). The board is also played with the mouse.

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Statistics from Lichess

46,725 games: White 53.3% / Draw 6.5% / Black 40.1%

The moves played next. Pick one to see it on the board.
Next moveGamesWhite / Draw / BlackW / D / B
35,34335K
4,7424,742
2,9032,903
2,1762,176
759759
280280
278278
5050

Rated Lichess games between players rated 1600 to 2500, from the Lichess opening explorer, updated Nov 1, 2026

Engine evaluation

+0.40 White is slightly better

Best play: 5. d4 O-O 6. O-O c6 7. b3 Nbd7 8. Bb2 a5 9. Ne5 Bc7

Stockfish 19, depth 30, after the line's last move. Scores are in pawns, from White's side.

Overview

English Opening: Agincourt Defense, Bogoljubow Defense (ECO A13, Flank Openings) is a variation of the English Opening: Neo-Catalan, reached after 1. c4 e6 2. Nf3 d5 3. g3 Nf6 4. Bg2 Bd6 (4 moves).

In 46,725 rated Lichess games between players rated 1600 to 2500, White won 53.3%, Black 40.1% and 6.5% were drawn. White's most played move here is 5. O-O, in 76% of those games.

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How to play against the English Opening: Agincourt Defense, Bogoljubow Defense

5. d4 scores best for White: 57.5%, with White winning 54.2% and Black 39.2% of 4,742 games. The most played, 5. O-O, scores 57.1% in 35K games, and 5. b3 scores lowest: 56.0%. Stockfish's first choice is also 5. d4.

Main answers: those played in at least 5% of these games. Score: White's wins plus half the draws, in rated Lichess games between players rated 1600 to 2500. How to play against other popular openings

Cite this page

Caissa Codex. “English Opening: Agincourt Defense, Bogoljubow Defense (A13)”. Lichess data as of 1 Nov 2026. https://chesscodex.org/openings/english-opening-agincourt-defense-bogoljubow-defense