Van't Kruijs Opening

Key ideas for both sides

Plans and pawn structure

Most games turn into a queen's pawn structure with White's pawn on e3 instead of e4. In the first engine line White plays c4 and d4 after ...Nf6 and ...e6, and the position looks like a Queen's Gambit Declined. In the other lines White builds with Nf3, Be2 and O-O before touching the center, and Black mirrors with ...Be7 and ...O-O. The pawn breaks c4 for White and ...c5 for Black decide who gets more space.

What the Van't Kruijs Opening is about

1.e3 is one of the quietest first moves in chess. The pawn on e3 opens a diagonal for the f1 bishop and a path for the queen toward the kingside, and it supports a later d4. What it does not do is claim e4 or d5. White accepts a slower start in exchange for flexibility: the next few moves can lead to a Queen's Gambit structure, a Colle-like setup, or a quiet system with c4 and a queenside fianchetto.

Across 54618 games from this position White scored 49.3%, a little below the usual first-move edge. The engine still rates the three main replies as close to equal with a tiny plus for White, so 1.e3 is sound. It simply gives Black more freedom than 1.e4 or 1.d4 do.

The main replies

There are no separate variation pages in this family, because play usually transposes into other openings. The three replies the engine likes are worth knowing.

1...Nf6 is the top choice. The engine line runs 2.Nf3 e6 3.c4 Be7 4.d4 d5 5.cxd5, and the game turns into a Queen's Gambit Declined where White's c1 bishop is still inside the pawn chain. Black is fine and can recapture on d5 with the pawn for a solid center or with the knight for quicker piece play.

1...d5 takes the center at once. After 2.Nf3 e6 3.Be2 Be7 4.O-O Nf6 5.d4 both sides build calmly. White can later decide between c4 and a slower plan with b3 and the bishop on the long diagonal.

1...e6 keeps everything symmetrical. The engine line 2.Nf3 Nf6 3.Be2 Be7 4.O-O O-O 5.c4 shows both sides castling before touching the center. Black can also try 1...e5, taking space at once; then White often plays c4 for a reversed Sicilian feel or d4 to challenge the pawn.

Typical plans for White

White's main plan is to finish development before choosing a center. Nf3, a bishop to e2 or d3, and O-O come first. Then White picks a break: c4 to fight for d5, or d4 followed by a slow buildup with the b1 knight to d2 and a later e4 push.

• With the pawn on e3 the c1 bishop is shut in. Fianchetto it with b3, or free it later by pushing e4.
• Do not drift. Without a clear plan, Black's free center pawns gain space with ...e5 and ...d5 together.
• The kingside is safe after O-O, so a queenside expansion with c4, a3 and b4 is a common way to play for more.

Typical plans for Black

Black has the luxury of choosing a structure. The simplest approach follows the engine: ...Nf6, ...e6, ...Be7 and ...O-O, then ...d5 and ...c5 to grab a fair share of space. A more ambitious Black player can occupy the center with both ...d5 and ...e5, since 1.e3 does nothing to stop it.

If White plays c4, keep d5 supported and look for ...c5 to strike at d4. If White builds slowly with Be2 and O-O, Black's c8 bishop can come out to f5 or g4 before ...e6 locks it in. That small detail often decides whether Black has a comfortable game or a cramped one.

Mistakes club players make

• Treating 1.e3 as harmless and playing passively. White gave up a center square, so slow play by Black only lets White catch up. Take the center.
• Early queen raids by White. The queen can reach h5 or f3 quickly after 1.e3, but going there before development usually loses time to ...Nf6 or ...Nc6.
• Leaving the c1 bishop at home. White players often finish the opening with the bishop still on c1 behind e3. Plan its route early.
• Black copying every move. Symmetry is fine for a while, but at some point Black must choose ...c5 or ...e5 to fight for space.

Who should play it

1.e3 suits White players who want to avoid main-line theory and steer toward familiar queen's pawn structures. It works best as a move-order tool: you keep c4 and d4 in reserve and see Black's setup first. Players who want a direct edge out of the opening should look at 1.e4 or 1.d4 instead.

For Black there is nothing to fear. Any sound setup with ...d5, ...e6 and ...Nf6 gives an equal game, and you will usually reach structures you already know from your replies to 1.d4.

What the engine plays from here

Stockfish 17.1 at depth 20 rates the position +0.11: level. Its three top choices for Black:

1. +0.11 1...Nf6 2.Nf3 e6 3.c4 Be7 4.d4
2. +0.13 1...d5 2.Nf3 e6 3.Be2 Be7 4.O-O
3. +0.14 1...e6 2.Nf3 Nf6 3.Be2 Be7 4.O-O

Pawns, from White's side.

How it scores on lichess

54,618 rated lichess games reached this position; White scored 49.3%.

Light: White wins. Grey: draws. Dark: Black wins. About the sample.

Variations of the Van't Kruijs Opening (1.e3)

• Amsterdam Attack1...e5 · rare

How to play against it

As Black, simply claim the center. Moves like ...d5, ...e6 and ...Nf6 give an equal, comfortable game, and the results from this position are close to even. Do not try to punish 1.e3 with early queen moves; it is a sound move, and you beat it by developing well, not by attacking at once.

Questions

Updated October 2026. Sources and method.