Mexican Defense: Black’s practical starting point

Stockfish rates this +0.64, a small edge for White. That means you are already a bit worse, so your first goal is to keep the position solid and avoid drifting into a worse structure. The database confirms that White has done well here: across 533,733 games, White wins 55.2%, draws 3.6%, and Black wins 41.2%. This is not a position where you can expect easy equality by force, so treat the opening as a practical test of defence and piece coordination.

The most played move is Nc3, with 238,578 games and a White score of 55.5%. Nf3 is also very common, with 121,667 games and a White score of 56.6%. Other regular choices are d5, e3, Bg5, and Bf4, and all of them score well for White in the database. The message is simple: White has several ways to keep a pleasant game, so you should know the tabiya well and be ready for a range of calm developing moves.

The engine’s best move here is Nc3, continuing Nc3 d5 Nf3 e6. That tells you where the opening is headed in the most reliable line the engine sees. In practical terms, your study should focus on meeting that natural development without letting White build a free attack or easy space advantage. If you can answer White’s most natural development cleanly, you are much more likely to reach a playable middlegame.

Bg5 is a known mistake in this position and loses about 1.1 pawns; better was Nc3. That is important because it shows that not every active-looking developing move is sound here. When White plays Bg5, do not rush or overreact—simply recognise that White has already stepped off the best path. In a line where you are slightly worse already, getting a tactical or positional improvement like this can be very valuable.