A82

Rat Defense: Balogh Defense

Chess diagram: Rat Defense: Balogh Defense after 2…f5

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.

Play any move on the board to explore from there, or step through the line with ‹ › and the arrow keys.

Statistics from Lichess

390,290 games: White 52.9% / Draw 4.3% / Black 42.8%

The moves played next. Pick one to see it on the board.
Next moveGamesWhite / Draw / BlackW / D / B
153,016153K
99,829100K
50,78651K
34,09534K
31,60532K
6,0936,093
4,5204,520
2,7342,734

Rated Lichess games between players rated 1600 to 2500, from the Lichess opening explorer, updated Oct 30, 2026

Engine evaluation

+1.39 White is better

Best play: 3. Nc3 Nf6 4. Bd3 fxe4 5. Nxe4 Nxe4 6. Bxe4 g6 7. c4 Bg7

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, 43% at 2200 and up (wins plus half the draws).

PlayersGamesWhite / Draw / BlackW / D / B
Under 1400 189K
1400–1799 259K
1800–2199 233K
2200 and up 16K
Masters, over the board 29

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

Rat Defense: Balogh Defense (ECO A82, Flank Openings) is a chess opening that starts 1. e4 d6 2. d4 f5.

In 390,290 rated Lichess games between players rated 1600 to 2500, White won 52.9%, Black 42.8% and 4.3% were drawn. White's most played move here is 3. Nc3, in 39% of those games.

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

Write a description or report a mistake
What would you like to send?

Markdown supported (headings ###, bold, lists, links). Submissions are reviewed before publishing.

How to play against the Rat Defense: Balogh Defense

The most played answer, 3. Nc3, also scores best for White: 57.1%, with White winning 54.9% and Black 40.8% of 153K games. Of the main answers, 3. e5 scores lowest: 48.0%. Stockfish's first choice is also 3. Nc3.

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 Rat Defense: Balogh Defense has stayed between 0.014% and 0.018% of Lichess games a year since 2016 (0.016% in 2025).

Numbers by year
YearShare of gamesGames
20160.018%6,536
20170.017%9,252
20180.018%14,257
20190.018%22,338
20200.015%44,705
20210.015%56,912
20220.015%55,227
20230.014%52,891
20240.014%49,805
20250.016%54,542
2026 (Jan–Apr)0.015%16,769

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. “Rat Defense: Balogh Defense (A82)”. Lichess data as of 30 Oct 2026. https://chesscodex.org/openings/rat-defense-balogh-defense