ECO E20 · Nimzo-Indian Defense

Nimzo-Indian Defense: Mikenas Attack

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qd3

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Black to move. The arrow shows Stockfish’s best move.
Best move

4… c5−0.12

The position is roughly equal. Stockfish 18, depth 18.

Analyze this position

In the Nimzo-Indian Defense: Mikenas Attack (E20), reached after 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qd3, Stockfish 18 recommends 4… c5 for Black. The position is roughly equal (−0.12).

Top engine moves

  1. −0.124… c5 5. e3 cxd4 6. exd4 d5 7. Nf3 O-O 8. Be2 b6 9. O-O
  2. +0.104… d5 5. a3 Bxc3+ 6. Qxc3 O-O 7. Nf3 b6 8. Bg5 dxc4 9. Qxc4
  3. +0.144… O-O 5. a3 Bxc3+ 6. Qxc3 d5 7. Bg5 c5 8. cxd5 cxd4 9. Qxd4

Frequently asked questions

What is the best move in the Nimzo-Indian Defense: Mikenas Attack?
After 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qd3, Stockfish 18 at depth 18 recommends 4… c5 for Black, continuing 5. e3 cxd4 6. exd4 d5 7. Nf3 O-O 8. Be2 b6 9. O-O. The position is roughly equal (−0.12). The next best moves are 4… d5 (+0.10) and 4… O-O (+0.14).
Is the Nimzo-Indian Defense: Mikenas Attack a good opening?
Stockfish rates the position at −0.12: the position is roughly equal. Evaluations this early in the game are small, so practical results depend far more on knowing the plans and typical structures than on the engine's number.
What is the ECO code of the Nimzo-Indian Defense: Mikenas Attack?
E20. ECO codes classify chess openings from A00 to E99; E is the volume for indian defenses.

Opening names from the Lichess opening book (CC0). Pieces by Colin M.L. Burnett (GPLv2+).