Nimzo-Indian Defense: Classical Variation, Berlin Variation, Macieja System

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 O-O 6. a3 Bxc5 7. Nf3 b6

Nimzo-Indian Defense: Classical Variation, Berlin Variation, Macieja System after 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 O-O 6. a3 Bxc5 7. Nf3 b6 87654321abcdefgh

The Nimzo-Indian Defense: Classical Variation, Berlin Variation, Macieja System is a chess opening classified as ECO E39, reached after 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 O-O 6. a3 Bxc5 7. Nf3 b6. It is a line of the Nimzo-Indian Defense. White is to move.

In 12.6 million rated Lichess games (blitz and slower), this position was reached 5 times by this move order. White won 40%, 20% were drawn and Black won 40%. The most popular continuation is 8. Bg5 (60% of games).

Engine evaluation: +0.40 (Stockfish, depth 46; best line 8. Bf4 Nc6 9. O-O-O Re8 10. Kb1 Bb7)

ECO
E39
Moves
14 plies
FEN
rnbq1rk1/p2p1ppp/1p2pn2/2b5/2P5/P1N2N2/1PQ1PPPP/R1B1KB1R w KQ - 0 8
PGN
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 O-O 6. a3 Bxc5 7. Nf3 b6

Analyse with Stockfish · Board image (SVG) · Open on Lichess

Results by rating

Average ratingGamesWhite / draw / Black
2000+540%20%40%
All540%20%40%

Most played moves

MoveGamesWhite / draw / Black
8. Bg53 (60%)67%33%
8. Bf42 (40%)100%

Master games

256 over-the-board games are classified under this line (White 39%, draw 32%, Black 29%). The strongest:

Search all games of the Nimzo-Indian Defense: Classical Variation, Berlin Variation, Macieja System and its sub-variations

Highest-rated Lichess games

Comes from

Nimzo-Indian Defense: Classical Variation, Berlin Variation, Pirc Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 O-O

More Nimzo-Indian Defense lines (all)

Opening names and moves from the Lichess openings dataset; statistics from the Lichess open database, 2026-09 (CC0), sample of 12.6 million games, bots excluded; evaluations from Lichess cloud analysis (all CC0). Master games from The Week in Chess #920–#1664 by Mark Crowther, used with permission.