The Polish Opening: c6 – A Level Fight After 1.b4 c6 2.e3

With 1.b4 you claim space on the queenside immediately. By following up with 2.e3, you prepare to develop the bishop to b2, where it will eye the long diagonal and pressure Black's kingside once they castle. You are not trying to grab a big centre in the classical sense — instead you are building a solid, slightly unusual setup that can take many shapes depending on what Black does. The most important square to watch is d5: if Black pushes there (which is the engine's recommended reply), you will meet it calmly with Bb2 and a quick a3 to support your b4-pawn. Your goal is a flexible position where your bishops have open diagonals and your opponent has to solve unfamiliar problems.

Stockfish's top recommendation after 2.e3 is 2...d5, and from there the engine suggests: 3.Bb2 Nf6 4.a3. This is a straightforward, principled setup. The move a3 protects your b4-pawn against any ...Qb6 or ...a5 ideas, and Bb2 puts immediate pressure on the d4 and e5 squares. Notice that you are not rushing to occupy the centre with d4; you are letting Black push first and then undermining their centre later. This line scores about 46% for White in practice — nothing flashy, but perfectly playable for a club player who wants a quiet but tricky position.

Over 7,600 games have seen 2...d5 — it is by far Black's most common response. Your plan is simple: Bb2, then a3, and later consider c4 or even e4 depending on Black's setup. You score around 46% here, which is respectable given the opening's nature. The next most popular reply is 2...d6 (585 games), where Black plays more flexibly. Your approach is similar: develop naturally and keep an eye on the centre. The surprise statistic is 2...e6 (540 games) — here White scores a healthy 54.8%! When Black blocks their light-squared bishop like this, you have extra reason to be confident. Against 2...e5 (418 games) or 2...Nf6 (338 games) the winning percentages hover around 45–46%, so nothing to fear.

Black's move 2...Qb6 has been played 353 times in practice, and it is a clear inaccuracy — the engine says it loses about 0.6 pawns compared to the better move 2...d5. The queen comes out early and becomes a target after you play 3.a3, threatening to kick it with c4 or even b5. Black's queen has no great square to go to, and they will often end up wasting tempo. If you face 2...Qb6, develop your bishop to b2 next (3.Bb2) and look to chase the queen away with gain of time. This is one of those pleasant little moments where knowing one move — a3 — gives you a much better position.