Nimzo-Indian Defense
The Nimzo-Indian Defense meets a d4 and c4 center by developing the king bishop to b4 against the knight on c3. Black pins the queen knight and influences White's central expansion, especially e4. White can seek the bishop pair, build a broad center or prevent doubled pawns. Exchanging on c3 helps determine the resulting long-term structure.
Opening moves: 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4
White’s plan
Develop and decide how to meet the pin. If you accept doubled c-pawns, seek active pieces and central space in return.
Black’s plan
Use the pin to influence the center. Compare exchanging on c3 with keeping the bishop, then challenge the center with c5 or d5.
Ideas behind the moves
Nf6
Develop toward the central squares.
e6
Prepare d5 while releasing the bishop.
Bb4
Pin the knight and influence e4.
Three mistakes to watch for
- Exchanging on c3 automatically without considering White's central control.
- Pushing e4 without checking the pin and tactical pressure.
- Treating doubled pawns as an immediate win rather than a positional tradeoff.
An example practice line
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5
This is one study continuation. Your opponent can choose other replies; learn the plan as well as the moves.
A tactical example
Mating net after 13.Kh1
After 13.Kh1, Black has a forced mate in 2. Start from this real-game position and calculate the finish. The earlier game moves are context, not a recommended repertoire.
This trap depends on a specific opponent mistake. It is not a guaranteed win from the opening.
Variations to explore
Classical Variation, Noa Variation, San Remo Variation
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. a3 Bxc3+ 6. Qxc3 Ne4 7. Qc2 Nc6 8. e3 e5
Practice this line →Rubinstein System, Hübner Variation
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 Nc6 6. Nf3 Bxc3+ 7. bxc3 d6 8. O-O O-O
Practice this line →Sämisch Variation, Capablanca Variation
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 Nc6 6. a3 Bxc3+ 7. bxc3 O-O 8. Ne2 b6 9. e4 Ne8
Practice this line →Leningrad Variation, Averbakh Gambit
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bg5 h6 5. Bh4 c5 6. d5 b5
Practice this line →
Common questions
What is Nimzo-Indian Defense?
Nimzo-Indian Defense is a chess opening. One standard move order is 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4.
How can I practice this opening?
Start with the main line and its explanations, recall it on the board, then add opponent replies and review the positions you found difficult.
Related openings
Content sources
- Opening names and routes use the Lichess opening database, released under CC0. Lichess chess-openings · CC0
- Position scores are prepared with Stockfish 18. They describe the recorded position, not your rating or a guaranteed result. Stockfish
- Move explanations and practice plans are prepared for this trainer. Translated lesson text is a draft and may need editorial corrections.