B00

Nimzowitsch Defense: French Connection

Chess diagram: Nimzowitsch Defense: French Connection after 2…e6

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

303,543 games: White 50.8% / Draw 4.6% / Black 44.7%

The moves played next. Pick one to see it on the board.
Next moveGamesWhite / Draw / BlackW / D / B
98,46098K
76,74077K
37,90938K
31,22531K
15,23615K
14,25614K
13,37513K
6,3056,305

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

Engine evaluation

+0.68 White is slightly better

Best play: 3. d4 Bb4 4. Qd3 d5 5. e5 Bd7 6. a3 Ba5 7. f4 f6

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% both under 1400 and at 2200 and up (wins plus half the draws).

PlayersGamesWhite / Draw / BlackW / D / B
Under 1400 414K
1400–1799 317K
1800–2199 138K
2200 and up 26K
Masters, over the board 132

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

Nimzowitsch Defense: French Connection (ECO B00, Semi-Open Games) is a variation of the Nimzowitsch Defense, reached after 1. e4 Nc6 2. Nc3 e6 (2 moves).

In 303,543 rated Lichess games between players rated 1600 to 2500, White won 50.8%, Black 44.7% and 4.6% were drawn. White's most played move here is 3. Nf3, in 32% of those games.

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How to play against the Nimzowitsch Defense: French Connection

3. d4 scores best for White: 55.6%, with White winning 53.3% and Black 42.1% of 77K games. The most played, 3. Nf3, scores 52.8% in 98K games, and 3. Bc4 scores lowest: 50.4%. Stockfish's first choice is also 3. 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 Nimzowitsch Defense: French Connection dipped to 0.01% of Lichess games in 2018 and has recovered since: 0.012% in 2025.

Numbers by year
YearShare of gamesGames
20160.013%4,597
20170.011%6,113
20180.01%8,205
20190.011%13,131
20200.01%30,702
20210.012%46,472
20220.012%43,540
20230.012%44,717
20240.012%44,146
20250.012%43,206
2026 (Jan–Apr)0.012%13,707

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. “Nimzowitsch Defense: French Connection (B00)”. Lichess data as of 30 Oct 2026. https://chesscodex.org/openings/nimzowitsch-defense-french-connection