Kádas Opening: e6 – A Quiet Start That Still Demands Accuracy

After 1.h4 e6 2.e4, the board has a clear central structure. White has claimed the centre with e4, while Black's …e6 points toward a French Defence setup. The difference is that your h-pawn has already advanced, which weakens the kingside slightly but also gives you a potential hook for later attacks. The engine's best move for Black is 3…d5, immediately challenging your centre — and indeed that is Black's most popular reply, played in 40,728 of the 85,199 games in the database. Your job in this position is to make the most of your space advantage in the centre while staying aware that your kingside is a step ahead (or behind) a normal opening. The evaluation is dead level in practice, so don't fear this position — just play solid chess.

Stockfish's top choice for Black is d5, after which the main line continues e5 c5 c3. This is a Standard French-like battle: you will gain space with e5, Black will try to undermine your centre with …c5, and you will support your d-pawn with c3. The resulting positions are well known from the Advance Variation of the French Defence, except that your h4 move is on the board instead of a normal development move. That means you may want to keep an eye on your h-pawn's safety as the game develops — but it also gives you the option of a future h5 push if Black leaves the kingside unattended.

The statistics reveal a clear hierarchy. Against d5 (the most common, 40,728 games), White scores 41.4% — the lowest winning percentage in the bunch. That makes sense: …d5 is Black's best response, and you will have to work for your result. Against c5 (5,587 games), White jumps to 44.1%, and against b6 (4,917 games) it rises to 45.2%. The three moves the engine flags as mistakes are b6, c6, and d6 — each loses roughly 0.8–0.9 pawns of evaluation compared to the best moves. If Black plays any of those, you have a clear edge right away. The best news? Many players at club level will not find the critical …d5, meaning you will often face a suboptimal move that gives you a head start.

The FACTS list three Black inaccuracies here. If Black plays b6, the engine says c5 was better — Black weakens the dark squares without challenging your centre. Your plan is straightforward: develop naturally, push d4, and enjoy your space advantage. If Black plays c6 (another inaccuracy, better was c5), Black prepares …d5 but has not committed to it yet — you can take the centre with d4 and keep a strong pawn duo. The biggest mistake is d6 (lost ~0.9 pawns; better was d5). Here Black plays too passively, giving you a free centre and all the space. If Black plays …d6, you should aim for d4 in one move, then develop your pieces to active squares and prepare a kingside initiative. These mistakes are not rare; they appear in thousands of games, so knowing how to respond will earn you easy points.