A00

Hungarian Opening: Slav Formation

Chess diagram: Hungarian Opening: Slav Formation after 2…c6

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

2,714,580 games: White 48.1% / Draw 5.5% / Black 46.4%

The moves played next. Pick one to see it on the board.
Next moveGamesWhite / Draw / BlackW / D / B
586,133586K
562,883563K
404,418404K
292,678293K
256,182256K
210,775211K
150,148150K
67,37967K

Rated Lichess games between players rated 1600 to 2500, from the Lichess opening explorer, updated Nov 8, 2026

Engine evaluation

+0.17 The position is about equal

Best play: 3. Nf3 Bg4 4. h3 Bxf3 5. Bxf3 e5 6. O-O Bc5 7. d3 a5

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

By rating

Rating changes little here: Black scores 48% under 1400, 46% at 2200 and up and 48% in master games (wins plus half the draws).

PlayersGamesWhite / Draw / BlackW / D / B
Under 1400 682K
1400–1799 1.6M
1800–2199 1.5M
2200 and up 238K
Masters, over the board 1,417

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 26, 2026

Overview

Hungarian Opening: Slav Formation (ECO A00, Flank Openings) is a variation of the Hungarian Opening, reached after 1. g3 d5 2. Bg2 c6 (2 moves).

In 2,714,580 rated Lichess games between players rated 1600 to 2500, White won 48.1%, Black 46.4% and 5.5% were drawn. White's most played move here is 3. Nf3, in 22% of those games.

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How to play against the Hungarian Opening: Slav Formation

3. c4 scores best for White: 53.2%, with White winning 50.3% and Black 43.9% of 211K games. The most played, 3. Nf3, scores 52.4% in 586K games, and 3. e3 scores lowest: 48.8%. Stockfish's first choice is 3. Nf3.

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 Hungarian Opening: Slav Formation has gained ground since 2016: 0.12% of Lichess games in 2025, up from 0.088%.

Numbers by year
YearShare of gamesGames
20160.088%31,268
20170.099%54,218
20180.1%79,970
20190.097%121,118
20200.097%283,557
20210.094%368,772
20220.1%381,727
20230.11%403,576
20240.11%412,265
20250.12%403,432
2026 (Jan–Apr)0.12%127,471

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. “Hungarian Opening: Slav Formation (A00)”. Lichess data as of 8 Nov 2026. https://chesscodex.org/openings/hungarian-opening-slav-formation