Nimzowitsch Defense: Williams Variation: d4 – A Complete Guide for Black

The most important thing to notice in this position is the pawn on d4 facing your pawn on e5. White has just pushed their d-pawn into the centre, challenging you to decide how the tension resolves. The engine's top choice is d5, a direct advance that clears the centre and forces White to find accurate follow-up moves (the engine continues d5 Nb8 h3 Nf6). This line is played in nearly 2.9 million games — the second most popular option — and White scores a relatively modest 53.9% from it, the lowest winning percentage among all major replies. That's a signal: when you challenge the centre with d5, you keep the game imbalanced and give yourself room to outplay your opponent.

By far the most common move White plays here is dxe5, appearing in over 3 million games. White takes the pawn, and Black must decide on recapture. The statistics are honest: White scores 55.9% after dxe5, the highest winning percentage of any White continuation. That said, the resulting position is very concrete. Black typically recaptures with the d-pawn (dxe5), leading to a symmetrical-ish pawn structure where piece activity and king safety become decisive. Many club players rush their development here without a plan. If you stay patient, complete your development, and keep an eye on the centre, you'll find plenty of winning chances yourself — Black still wins over 40% of these games.

Because the Nimzowitsch Defense is less popular than main-line openings, many Black players arrive at this position without a clear idea of what to do. Here are the traps to dodge: Don't develop your knight to f6 too early — after 4.d5 Nb8, if you play Nf6 prematurely, White's h3 can be annoying and restrict your best setup. Don't let White have easy central control — moves like c3 (52.5% for White) and Nc3 (52.7% for White) show that passive play from Black gives White no problems; those are White's lowest-scoring options. Don't panic when White plays Bb5 or Bc4 — these bishop moves score well for White (55.8% each) because Black often reacts too defensively. Remember: your knight on c6 is a target, but retreating to b8 (as in the d5 line) is often fine if you follow up with active play.

The engine's best continuation — 4.d5 Nb8 5.h3 Nf6 — might look humble for Black. Retreating the knight back to b8 seems counterintuitive, but it serves a purpose. By pushing White's d-pawn forward with d5, you gain space on the queenside and force White to spend time playing h3 before developing further. Then Nf6 develops naturally. Notice that Black hasn't rushed to challenge the centre again. Instead, Black is building a solid, flexible setup. The engine evaluation of +0.87 remains in White's favour, but in practical play, this position is rich with opportunities. Black is not worse by much, and the structure is unusual enough that a well-prepared Black player can easily outscore the statistics.