B00

Barnes Defense

Chess diagram: Barnes Defense after 1…f6

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

877,680 games: White 55.6% / Draw 3.8% / Black 40.6%

The moves played next. Pick one to see it on the board.
Next moveGamesWhite / Draw / BlackW / D / B
452,889453K
194,655195K
68,73969K
53,03953K
48,76949K
15,96316K
8,2918,291
7,7687,768

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

Engine evaluation

+1.61 White is clearly better

Best play: 2. d4 e6 3. Nc3 Bb4 4. Bd2 Qe7 5. Nge2 Qf7 6. a3 Bxc3

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 39% under 1400, 44% at 2200 and up (wins plus half the draws).

PlayersGamesWhite / Draw / BlackW / D / B
Under 1400 1.3M
1400–1799 834K
1800–2199 425K
2200 and up 66K
Masters, over the board 5

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

Barnes Defense (ECO B00, Semi-Open Games) is a variation of the King's Pawn Game, reached after 1. e4 f6 (1 move).

In 877,680 rated Lichess games between players rated 1600 to 2500, White won 55.6%, Black 40.6% and 3.8% were drawn. White's most played move here is 2. d4, in 52% of those games.

It branches into 2 named variations; the most played are Fried Fox Defense and Owen Defense: Unicorn Variation.

Written from the Lichess opening list and explorer. Know this line well? Write about it.

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How to play against the Barnes Defense

The most played answer, 2. d4, also scores best for White: 58.7%, with White winning 56.8% and Black 39.4% of 453K games. Of the main answers, 2. Bc4 scores lowest: 56.2%. Stockfish's first choice is also 2. 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

Popularity by year

The Barnes Defense has stayed between 0.032% and 0.038% of Lichess games a year since 2016 (0.033% in 2025).

Numbers by year
YearShare of gamesGames
20160.038%13,690
20170.032%17,674
20180.035%27,147
20190.033%41,078
20200.034%100,014
20210.035%135,981
20220.035%131,411
20230.034%128,875
20240.033%119,177
20250.033%115,393
2026 (Jan–Apr)0.032%34,646

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

Variations (2)

Cite this page

Caissa Codex. “Barnes Defense (B00)”. Lichess data as of 1 Nov 2026. https://chesscodex.org/openings/barnes-defense