A13

English Opening: Agincourt Defense, Kurajica Defense

Chess diagram: English Opening: Agincourt Defense, Kurajica Defense after 3…c6

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Statistics from Lichess

175,645 games: White 54.9% / Draw 6.2% / Black 39.0%

The moves played next. Pick one to see it on the board.
Next moveGamesWhite / Draw / BlackW / D / B
124,237124K
25,89126K
13,40213K
5,3075,307
5,0565,056
514514
402402
341341

Rated Lichess games between players rated 1600 to 2500, from the Lichess opening explorer, updated Oct 29, 2026

Engine evaluation

+0.29 The position is about equal

Best play: 4. b3 Nd7 5. Bb2 Ngf6 6. Bg2 Bd6 7. d4 Ne4 8. O-O f5

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 worse this line does for Black: Black scores 46% under 1400, 41% at 2200 and up and 42% in master games (wins plus half the draws).

PlayersGamesWhite / Draw / BlackW / D / B
Under 1400 4,082
1400–1799 26K
1800–2199 116K
2200 and up 40K
Masters, over the board 388

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, Kurajica Defense (ECO A13, Flank Openings) is a variation of the English Opening: Agincourt Defense, reached after 1. c4 e6 2. Nf3 d5 3. g3 c6 (3 moves).

In 175,645 rated Lichess games between players rated 1600 to 2500, White won 54.9%, Black 39.0% and 6.2% were drawn. White's most played move here is 4. Bg2, in 71% of those games.

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

4. b3 scores best for White: 58.7%, with White winning 55.4% and Black 38.0% of 26K games. The most played, 4. Bg2, scores 58.4% in 124K games, and 4. cxd5 scores lowest: 52.6%. Stockfish's first choice is also 4. b3.

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, Kurajica Defense peaked in 2018 at 0.0094% of Lichess games and has slipped since: 0.0071% in 2025.

Numbers by year
YearShare of gamesGames
20160.0085%3,035
20170.0088%4,828
20180.0094%7,397
20190.0087%10,802
20200.0072%20,939
20210.006%23,321
20220.0061%22,919
20230.006%22,586
20240.0066%23,700
20250.0071%24,631
2026 (Jan–Apr)0.0073%8,018

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

Cite this page

Caissa Codex. “English Opening: Agincourt Defense, Kurajica Defense (A13)”. Lichess data as of 29 Oct 2026. https://chesscodex.org/openings/english-opening-agincourt-defense-kurajica-defense