Nimzo-Indian Defense: Spielmann Variation, Carlsbad Variation

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qb3 c5 5. dxc5 Nc6 6. Nf3 Ne4 7. Bd2 Nxd2

Nimzo-Indian Defense: Spielmann Variation, Carlsbad Variation after 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qb3 c5 5. dxc5 Nc6 6. Nf3 Ne4 7. Bd2 Nxd2 87654321abcdefgh

The Nimzo-Indian Defense: Spielmann Variation, Carlsbad Variation is a chess opening classified as ECO E23, reached after 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qb3 c5 5. dxc5 Nc6 6. Nf3 Ne4 7. Bd2 Nxd2. 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 58%, 0% were drawn and Black won 42%. The most popular continuation is 8. Nxd2 (100% of games).

Engine evaluation: −0.08 (Stockfish, depth 38; best line 8. Nxd2 Bxc5 9. g3 Qb6 10. Qxb6 Bxb6)

ECO
E23
Moves
14 plies
FEN
r1bqk2r/pp1p1ppp/2n1p3/2P5/1bP5/1QN2N2/PP1nPPPP/R3KB1R w KQkq - 0 8
PGN
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qb3 c5 5. dxc5 Nc6 6. Nf3 Ne4 7. Bd2 Nxd2

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Results by rating

Average ratingGamesWhite / draw / Black
1500-1999475%25%
2000+850%50%
All1258%42%

Most played moves

MoveGamesWhite / draw / Black
8. Nxd212 (100%)58%42%

Master games

97 over-the-board games are classified under this line (White 32%, draw 36%, Black 32%). The strongest:

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

Highest-rated Lichess games

Comes from

Nimzo-Indian Defense: Spielmann Variation, Romanovsky Gambit 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qb3 c5 5. dxc5 Nc6

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.