ECO A50 · Mexican Defense

Mexican Defense

1. d4 Nf6 2. c4 Nc6

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

3. d5+0.51

White is slightly better. Stockfish 18, depth 18.

Analyze this position

In the Mexican Defense (A50), reached after 1. d4 Nf6 2. c4 Nc6, Stockfish 18 recommends 3. d5 for White. White is slightly better (+0.51).

Top engine moves

  1. +0.513. d5 Ne5 4. e4 e6 5. f4 Ng6 6. Bd3 Bb4+ 7. Bd2 a5
  2. +0.483. Nf3 e6 4. g3 Bb4+ 5. Bd2 a5 6. Bg2 O-O 7. O-O d6
  3. +0.463. Nc3 d5 4. Nf3 e6 5. Bg5 Be7 6. e3 O-O 7. h4 Ng4

All Mexican Defense variations (1)

Frequently asked questions

What is the best move in the Mexican Defense?
After 1. d4 Nf6 2. c4 Nc6, Stockfish 18 at depth 18 recommends 3. d5 for White, continuing Ne5 4. e4 e6 5. f4 Ng6 6. Bd3 Bb4+ 7. Bd2 a5. White is slightly better (+0.51). The next best moves are 3. Nf3 (+0.48) and 3. Nc3 (+0.46).
Is the Mexican Defense a good opening?
Stockfish rates the position at +0.51: white is slightly better. 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 Mexican Defense?
A50. ECO codes classify chess openings from A00 to E99; A is the volume for flank openings.

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