A13

English Opening: Agincourt Defense, Catalan Defense Accepted

Chess diagram: English Opening: Agincourt Defense, Catalan Defense Accepted after 4…dxc4

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Statistics from Lichess

201,031 games: White 52.1% / Draw 7.1% / Black 40.8%

The moves played next. Pick one to see it on the board.
Next moveGamesWhite / Draw / BlackW / D / B
95,42195K
78,01678K
11,24011K
5,1255,125
3,7633,763
3,3683,368
3,1963,196
308308

Rated Lichess games between players rated 1600 to 2500, from the Lichess opening explorer, updated Oct 25, 2026

Engine evaluation

+0.15 The position is about equal

Best play: 5. Qa4+ Bd7 6. Qxc4 c5 7. O-O b5 8. Qh4 Bc6 9. a4 a6

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

By rating

The stronger the players, the better this line does for Black: Black scores 44% under 1400, 48% at 2200 and up and 45% in master games (wins plus half the draws).

PlayersGamesWhite / Draw / BlackW / D / B
Under 1400 4,553
1400–1799 28K
1800–2199 97K
2200 and up 84K
Masters, over the board 5,378

Master games

Rated blitz, rapid and classical Lichess games by rating band, and over-the-board games of players rated 2200+ from the Lichess masters database, updated Sep 27, 2026

Overview

English Opening: Agincourt Defense, Catalan Defense Accepted (ECO A13, Flank Openings) is a variation of the English Opening: Agincourt Defense, reached after 1. c4 e6 2. Nf3 Nf6 3. g3 d5 4. Bg2 dxc4 (4 moves).

In 201,031 rated Lichess games between players rated 1600 to 2500, White won 52.1%, Black 40.8% and 7.1% were drawn. White's most played move here is 5. O-O, in 47% of those games.

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How to play against the English Opening: Agincourt Defense, Catalan Defense Accepted

5. Na3 scores best for White: 57.4%, with White winning 54.0% and Black 39.2% of 11K games. The most played, 5. O-O, scores 57.2% in 95K games, and 5. Qa4+ scores lowest: 53.8%. Stockfish's first choice is 5. Qa4+.

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

Popularity by year

The English Opening: Agincourt Defense, Catalan Defense Accepted has gained ground since 2016: 0.0082% of Lichess games in 2025, up from 0.0065% (its peak: 0.0099% in 2018).

Numbers by year
YearShare of gamesGames
20160.0065%2,322
20170.0078%4,320
20180.0099%7,761
20190.0091%11,364
20200.0086%25,076
20210.0067%26,317
20220.0073%27,426
20230.0073%27,518
20240.0077%27,624
20250.0082%28,372
2026 (Jan–Apr)0.0086%9,385

Share of rated Lichess games between players rated 1600 to 2500 (blitz, rapid and classical) that reach this position, by year; 2026: January to April. Which openings are rising and falling

Transpositions

Cite this page

Caissa Codex. “English Opening: Agincourt Defense, Catalan Defense Accepted (A13)”. Lichess data as of 25 Oct 2026. https://chesscodex.org/openings/english-opening-agincourt-defense-catalan-defense-accepted