Nimzo-Indian Defense: St. Petersburg Variation, with Ne4

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Bd3 Bb7 6. Nf3 Ne4

Nimzo-Indian Defense: St. Petersburg Variation, with Ne4 after 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Bd3 Bb7 6. Nf3 Ne4 87654321abcdefgh

The Nimzo-Indian Defense: St. Petersburg Variation, with Ne4 is a chess opening classified as ECO E43, reached after 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Bd3 Bb7 6. Nf3 Ne4. 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 28 times by this move order. White won 43%, 0% were drawn and Black won 57%. The most popular continuation is 7. Qc2 (64% of games).

Engine evaluation: +0.36 (Stockfish, depth 44; best line 7. O-O f5 8. Ne2 Bd6 9. a3 c5)

ECO
E43
Moves
12 plies
FEN
rn1qk2r/pbpp1ppp/1p2p3/8/1bPPn3/2NBPN2/PP3PPP/R1BQK2R w KQkq - 4 7
PGN
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Bd3 Bb7 6. Nf3 Ne4

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

Results by rating

Average ratingGamesWhite / draw / Black
1500-19991164%36%
2000+1729%71%
All2843%57%

Most played moves

MoveGamesWhite / draw / Black
7. Qc218 (64%)56%44%
7. Bd25 (18%)20%80%
7. O-O3 (11%)100%
7. Bxe42 (7%)50%50%

Master games

196 over-the-board games are classified under this line (White 35%, draw 31%, Black 34%). The strongest:

Search all games of the Nimzo-Indian Defense: St. Petersburg Variation, with Ne4 and its sub-variations

Highest-rated Lichess games

Comes from

Nimzo-Indian Defense: St. Petersburg Variation (5… Bb7 6. Nf3) 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Bd3 Bb7 6. Nf3

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.