Nimzo-Indian Defense: Normal Variation, Schlechter Defense (7. O-O d5)

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Bd3 Bb7 6. Nf3 O-O 7. O-O d5

Nimzo-Indian Defense: Normal Variation, Schlechter Defense after 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Bd3 Bb7 6. Nf3 O-O 7. O-O d5 87654321abcdefgh

The Nimzo-Indian Defense: Normal Variation, Schlechter Defense is a chess opening classified as ECO E52, reached after 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Bd3 Bb7 6. Nf3 O-O 7. O-O d5. 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 12 times by this move order. White won 50%, 0% were drawn and Black won 50%. The most popular continuation is 8. cxd5 (58% of games).

Engine evaluation: +0.29 (Stockfish, depth 43; best line 8. cxd5 exd5 9. Ne5 c5 10. Bd2 Ba6)

ECO
E52
Moves
14 plies
FEN
rn1q1rk1/pbp2ppp/1p2pn2/3p4/1bPP4/2NBPN2/PP3PPP/R1BQ1RK1 w - - 0 8
PGN
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Bd3 Bb7 6. Nf3 O-O 7. O-O d5

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

Results by rating

Average ratingGamesWhite / draw / Black
1500-19993100%
2000+933%67%
All1250%50%

Most played moves

MoveGamesWhite / draw / Black
8. cxd57 (58%)43%57%
8. Qc22 (17%)100%
8. a32 (17%)50%50%
8. Qe21 (8%)100%

Master games

109 over-the-board games are classified under this line (White 48%, draw 20%, Black 32%). The strongest:

Search all games of the Nimzo-Indian Defense: Normal Variation, Schlechter Defense and its sub-variations

Highest-rated Lichess games

Comes from

Nimzo-Indian Defense: St. Petersburg Variation (6… O-O 7. O-O) 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Bd3 Bb7 6. Nf3 O-O 7. 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.