King's Indian Attack: c5 — A Level Position Where Small Details Matter

After 1.Nf3 d5 2.g3 c5 3.c4, the position resembles a reversed Sicilian or a subtle Queen's Gambit setup. The engine's top recommendation is d4 — Black's move, not yours. Wait a moment: in the diagram after 3.c4, it's Black to move, and the engine says Black's best is d4. That tells you something important about the resulting structures. If Black plays d4, the game can continue with e3, Nc6, and d3, leading to a closed centre where White's kingside fianchetto and piece play matter more than brute force. You are White, and you are waiting to see how Black handles this critical central decision. Many of Black's alternatives — e6, Nc6, or Bg4 — are actual mistakes that give you a real edge. The drill below will show you exactly how to capitalise. Your job is to steer the game toward positions where your extra space on the kingside and the bishop on g3 become long-term assets.

The database of over 15,000 games gives a clear picture of what you are likely to face as White. Here is how Black's most popular moves score against you, with White's winning percentage in parentheses: - d4 (6,886 games, White scores 51.3%): The engine's top choice and the most common. Expect a manoeuvring game. - Nf6 (2,461 games, White scores 52.3%): A natural developing move. White scores slightly better here. - e6 (2,115 games, White scores 53.3%): Despite being the third-most popular, the engine calls this an inaccuracy that loses roughly 0.6 pawns. You are already a little better when Black plays this. - Nc6 (1,416 games, White scores 53.2%): Also an inaccuracy (~0.6 pawns lost). Black develops a piece but neglects the centre. - Bg4 (245 games, White scores 58.4%): This is a full mistake, losing about 1.5 pawns. It's rare, but if your opponent tries it, your winning chances jump dramatically. The takeaway is simple: even though the starting position is level, many Black replies are inaccurate. If you know which continuations to aim for, you can consistently reach positions where you are the one pressing.

The engine identifies three Black moves as outright errors: e6, Nc6, and Bg4. Here is what you need to know to make Black pay. - If Black plays e6: This is an inaccuracy. Black solidifies the centre but misses the chance to challenge you at d4. Your follow-up should aim to increase the pressure — look to play d4 yourself soon, or target the d5 pawn with pieces. The statistics show you score 53.3%, and the engine gives you about 0.6 pawns of advantage to work with. - If Black plays Nc6: Another inaccuracy. Black develops but fails to address the centre. Again, you gain roughly 0.6 pawns of edge. Your plan involves taking space and using the fact that Black's knight doesn't attack your critical squares. Play actively in the centre and on the kingside. - If Black plays Bg4: This is a clear mistake, losing around 1.5 pawns. Black pins the knight on f3, but the pin is not dangerous here. White can gain time by chasing the bishop with h3 or simply ignore it and build a strong centre. With a 58.4% win rate for White in practice, this is the gift you hope to receive. In the drill, the engine will play these moves against you and test whether you can capitalise. Each mistake has a concrete — you will find the strongest replies through trial and error.

The King's Indian Attack: c5 is perfect for players who enjoy outplaying opponents rather than out-calculating them. The starting position is level, White's advantage is psychological and positional rather than tactical. If you like: - Closed or semi-open positions where piece manoeuvring matters more than sharp tactics. - Having a fianchettoed kingside bishop aimed at the centre. - A repertoire that avoids heavy theory while still being principled. - Punishing opponents who mis-handle the opening (and as the stats show, many do). Then this line deserves a spot in your toolbox. Use the drill below to internalise the key structures and responses. Play it a few times, try different approaches, and see how the engine's evaluation shifts when you find the right plan.