Zukertort Opening: Black Mustang Defense

The starting position comes from 1.Nf3 Nc6, and it is White to move. That means Black has already committed to a flexible setup and now has to answer the first central decision accurately. The engine’s best move for White is d4, so your main job is to be ready for that central push and not drift into a passive position. Keep your pieces active, stay coordinated, and be prepared to meet White’s central space with sound development rather than waiting too long.

The most common continuation is d4, and it is also the move the engine prefers. In the best line given here, the play continues d4 d5 c4 Bg4. You do not need to memorise anything beyond that sequence, but the idea is clear: White challenges the centre immediately, and Black answers in a direct way. In the drill, focus on meeting central pressure with an active and sensible response instead of allowing White to settle comfortably.

Stockfish rates this +0.53, a small edge for White. That means you are slightly worse, so you should aim for a practical, playable game rather than trying to claim an advantage for Black. The database also shows that White scores 50.2%, draws 4.2%, and Black scores 45.6% across 7,710,093 games at this exact position. The position is not dead lost, but White has the more comfortable start.

Besides d4, the other popular choices are g3, e4, c4, Nc3, and e3. Among these, d4 is the move to know best, because it appears most often and is the engine’s top choice. The database also marks some white moves as inaccuracies: g3 is an inaccuracy, c4 is an inaccuracy, and Nc3 is an inaccuracy. All three are said to lose about half a pawn or more compared with d4, so if White chooses one of them, you can feel more confident about keeping the game under control.