B06

Modern Defense: Standard Defense

Chess diagram: Modern Defense: Standard Defense after 3…d6

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

5,247,438 games: White 52.2% / Draw 4.7% / Black 43.1%

The moves played next. Pick one to see it on the board.
Next moveGamesWhite / Draw / BlackW / D / B
1,843,1161.8M
Modern Defense: Two Knights Variation 1,180,5161.2M
Modern Defense: Pseudo-Austrian Attack 903,149903K
327,923328K
216,933217K
176,577177K
125,564126K
109,985110K

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

Engine evaluation

+0.72 White is better

Best play: 4. Be3 Nf6 5. Qd2 c6 6. Nf3 Qa5 7. Be2 O-O 8. O-O Bg4

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 49% under 1400, 47% at 2200 and up and 46% in master games (wins plus half the draws).

PlayersGamesWhite / Draw / BlackW / D / B
Under 1400 453K
1400–1799 1.5M
1800–2199 3.1M
2200 and up 1.2M
Masters, over the board 20K

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

Modern Defense: Standard Defense (ECO B06, Semi-Open Games) is a variation of the Modern Defense: Standard Line, reached after 1. e4 g6 2. d4 Bg7 3. Nc3 d6 (3 moves).

In 5,247,438 rated Lichess games between players rated 1600 to 2500, White won 52.2%, Black 43.1% and 4.7% were drawn. White's most played move here is 4. Be3, in 35% of those games.

It branches into 2 named variations; the most played are Modern Defense: Two Knights Variation and Modern Defense: Pseudo-Austrian Attack. In all, 3 named lines continue from it.

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How to play against the Modern Defense: Standard Defense

4. Bg5 scores best for White: 57.5%, with White winning 55.3% and Black 40.3% of 328K games. The most played, 4. Be3, scores 55.0% in 1.8M games, and 4. Nf3 scores lowest: 52.5%. Stockfish's first choice is 4. Be3.

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 Modern Defense: Standard Defense has gained ground since 2016: 0.21% of Lichess games in 2025, up from 0.17%.

Numbers by year
YearShare of gamesGames
20160.17%59,317
20170.21%114,710
20180.23%180,985
20190.21%264,414
20200.21%613,714
20210.19%733,791
20220.19%724,198
20230.2%756,788
20240.21%741,882
20250.21%728,002
2026 (Jan–Apr)0.22%243,694

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)

All 3 named lines that continue from here

Cite this page

Caissa Codex. “Modern Defense: Standard Defense (B06)”. Lichess data as of 30 Oct 2026. https://chesscodex.org/openings/modern-defense-standard-defense