Owen Defense
The Owen Defense is 1.e4 b6, where Black prepares ...Bb7 to put pressure on e4 from the long diagonal. White builds a broad center with d4, Nf3 and Bd3, while Black aims for ...e6, ...c5 and ...Bb4 to chip away at it later.
- Moves
- 1.e4 b6
- ECO
- B00
- Engine
- +0.88 · a clear edge for White (Stockfish 17.1, depth 20)
- Played
- 44,683 games in our lichess sample
- White scores
- 51.7%
Key ideas for both sides
White
- Take the center with d4 and protect e4 with Bd3 or Nc3, so the b7 bishop hits a solid wall.
- Against ...c5, play c3 so you can recapture on d4 with a pawn and keep a full center.
- Use the space for a kingside attack with Nf3, O-O, a rook to e1 and later e5 to gain more room.
- Avoid the Smith Gambit move order 2.d4 Bb7 3.Nf3, which lets Black take e4 for free.
Black
- Fianchetto with ...Bb7 and aim it at e4. Many White setups have to spend a move defending that pawn.
- Play ...e6 and ...c5 to attack d4 and open the c-file for a rook.
- Pin a knight on c3 with ...Bb4 to tie down a defender of e4.
- After 2.d4 Bb7 3.Nf3, take the e4 pawn with ...Bxe4, as the engine recommends.
Plans and pawn structure
The engine's top line 2.d4 e6 3.Nf3 Bb7 4.Bd3 c5 5.c3 shows the typical structure. White has pawns on e4 and d4, supported by c3, and the bishop on d3 defends e4. Black has a hedgehog-style setup with ...e6, ...b6 and ...c5 and will exchange on d4 to open the c-file. White usually castles kingside and looks for e5 or a kingside attack with a rook on e1 and Nbd2. Black castles, plays ...d6 or ...d5 and fights for the light squares.
What the Owen Defense is about
The Owen Defense starts 1.e4 b6. Black does not fight for the center with pawns right away. Instead the c8 bishop goes to b7, where it looks straight down the long diagonal at e4 and, further on, at White's kingside. It is a hypermodern idea: let White build a center, then attack it.
From 44683 games White scored 51.7%, so it holds up fine in practice. The engine gives White a pleasant edge after 2.d4, 2.Nf3 or 2.Nc3. The reason is simple: Black spends early moves on the queenside while White grabs the center.
The main variations
The most important named line is a trap for White. The Smith Gambit, 2.d4 Bb7 3.Nf3, leaves the e4 pawn without protection. Black should take it with 3...Bxe4, and the engine prefers Black after that. White scored 50.2% in 1194 games, mostly because many Black players do not take the pawn.
White's best setups protect e4 first. The engine's top line is 2.d4 e6 3.Nf3 Bb7 4.Bd3 c5 5.c3, where the bishop guards e4 and c3 supports d4. A second plan is 2.Nf3 Bb7 3.Nc3 e6 4.d4 Bb4 5.Bd3 c5. Here Black pins the c3 knight to tie down a defender of e4, and White again uses the d3 bishop as a guard.
A third option is 2.Nc3 c5 3.Nf3 e6 4.d4 cxd4 5.Nxd4, which leads to positions like a Sicilian. Black gets a pawn on b6 instead of the usual setup, and White has easy development.
Typical plans for White
White's job is to use the extra space. A classic setup is d4, Nf3, Bd3, O-O, c3 and a rook on e1. With e4 safely protected, the b7 bishop bites on granite. White then plays for e5 to cramp Black's kingside or for a direct attack with Nbd2, Qe2 and a knight on g3 or f1.
- Keep the center pawns on e4 and d4 as long as possible. If Black takes on d4, recapture with the c-pawn after c3.
- Watch for ...Bb4 pins and answer with Bd2 or a quick a3, so the c3 knight stays a firm guard of e4.
- A space edge is the main asset. Avoid trades that free Black's game.
Typical plans for Black
Black builds a flexible position: ...Bb7, ...e6, ...c5, ...Nf6 and ...Be7 or ...Bb4. The pawn break ...c5 is the main way to fight the center. After an exchange on d4, Black gets a half-open c-file for a rook and a long diagonal for the b7 bishop.
- Pin the c3 knight with ...Bb4 to hit e4 twice.
- Use ...d5 or ...d6 later, depending on whether White has played e5.
- Keep the b7 bishop active. If White ever lets go of e4, take it.
Black is a bit cramped at first, so patience matters. The counterplay comes after castling and a well-timed ...c5 or ...d5.
Mistakes club players make
- White playing 3.Nf3 too early. After 2.d4 Bb7, the e4 pawn hangs if the knight blocks the f-pawn and nothing guards e4. Play Bd3 or Nc3 first.
- Black missing the free pawn. In the Smith Gambit, Black should take on e4. Not taking it gives White a strong center for nothing.
- Black playing too slowly. If Black spends moves on ...a6 and ...h6 without ...c5, White's space grows and e5 cramps the kingside.
- White over-pushing. A pawn on e5 is strong only if d4 stays protected. Don't let the center become a target.
Who should play it
The Owen fits Black players who like flexible, slow positions and dislike heavy theory. It also suits players of the English or other fianchetto openings, since the ideas feel familiar. Against well-prepared opponents it gives White an easy space advantage.
For White, the best approach is calm development with d4, Bd3 and Nf3 in a safe order. You do not need sharp lines to get a good game. Learn where e4 needs support, keep d4 backed by c3, and use your extra space for a slow kingside build-up.
For Black, the key skill is timing. The ...c5 break and the ...Bb4 pin only work when the pieces behind them are ready, so play them after ...e6 and ...Nf6, not before.
What the engine plays from here
Stockfish 17.1 at depth 20 rates the position +0.88: a clear edge for White. Its three top choices for White:
- +0.88 2.d4 e6 3.Nf3 Bb7 4.Bd3 c5
- +0.76 2.Nf3 Bb7 3.Nc3 e6 4.d4 Bb4
- +0.57 2.Nc3 c5 3.Nf3 e6 4.d4 cxd4
Pawns, from White's side.
How it scores on lichess
44,683 rated lichess games reached this position; White scored 51.7%.
Light: White wins. Grey: draws. Dark: Black wins. About the sample.
Variations of the Owen Defense
- Smith Gambit2.d4 · 1,194 games
- Matovinsky Gambit2.d4 · rare
How to play against it
As White, keep it simple. Play 2.d4 and develop with Nf3 and Bd3, making sure e4 is protected before you play Nf3 on its own. Meet ...c5 with c3 to keep the center. Do not play 2.d4 Bb7 3.Nf3?, which simply drops the e4 pawn.
Questions
What are the moves of the Owen Defense?
The Owen Defense starts 1.e4 b6. Its ECO code is B00.
Is the Owen Defense good for Black?
Stockfish 17.1 rates the position +0.88 at depth 20, which is a clear edge for White. In 44,683 lichess games from our sample, White scored 51.7%. A playable surprise for Black players who like flexible, hypermodern setups, but it gives White a comfortable space edge without much effort.
What is the main idea of the Owen Defense?
Black fianchettoes the queen's bishop on b7 to attack e4 and lets White build a center first. Later Black uses ...e6, ...c5 and sometimes ...Bb4 to strike at that center.
What should White play next?
The engine's first choice is d4, with Nf3 and Nc3 close behind. 2.d4 takes the full center at once, and White can defend e4 with Bd3 before the b7 bishop arrives.
Updated October 2026. Sources and method.