Queen's Indian Defense: Spassky System
The Spassky System of the Queen's Indian is 4.e3, a quiet move that opens the f1 bishop and keeps the c1 bishop for b2. White aims for a solid setup with b3, Bb2 and Bd3, while Black gets easy development with ...d5 and ...Bb7.
- Moves
- 1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.e3
- ECO
- E14
- Engine
- −0.08 · level (Stockfish 17.1, depth 20)
- Played
- 228 games in our lichess sample
- White scores
- 51.3%
Key ideas for both sides
White
- Build with b3 and Bb2, then Bd3 and short castling, the same setup Black uses.
- Use the knight on c3 and cxd5 to trade into a symmetrical but slightly active center.
- The Bb5+ check after ...Bb7 and ...exd5 forces ...c6 and slows Black down.
- Look for dxc5 when Black plays ...c5 to create hanging pawns or an isolated pawn.
Black
- 4...d5 sets a solid center; follow with ...Bb7, ...Bd6 and ...c5 in that order.
- The bishop on d6 aims at the kingside and h2, which helps if White castles short.
- ...Be7 and short castling keep things simple and safe against b3 setups.
- Strike with ...c5 to challenge d4, open the c-file and free the queenside pieces.
Plans and pawn structure
Both sides develop calmly, so the structure after the central trades decides plans. If White plays cxd5 and Black takes with the pawn, Black gets a d5 pawn and White aims at it with Nc3 and Bb5+. If Black plays ...c5 and White takes, Black may get hanging pawns on c5 and d5, which give space but need care. Black's bishops on b7 and d6 point at White's king, so White must keep the kingside covered.
What the engine plays from here
Stockfish 17.1 at depth 20 rates the position −0.08: level. Its three top choices for Black:
- −0.08 4...d5 5.b3 Bb7 6.Bb2 Bd6 7.Bd3
- −0.06 4...Bb7 5.Nc3 d5 6.cxd5 exd5 7.Bb5+
- +0.05 4...Be7 5.Nc3 d5 6.cxd5 exd5 7.b3
Pawns, from White's side.
How it scores on lichess
228 rated lichess games reached this position; White scored 51.3%.
Light: White wins. Grey: draws. Dark: Black wins. About the sample.
Where it goes next
- Spassky System34...Bb7 · rare
How to play against it
As Black, do not fear the quiet move. Play ...d5, ...Bb7 and ...Bd6 or ...Be7 and castle. Then use ...c5 to open lines. Avoid passive moves; White has no early threats, so this is a good chance to equalize with simple moves.
Other lines with this name
The lichess opening list also files these lines under the same name, though they reach a different position: 1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.e3 Bb7; 1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.e3 Bb7 5.Bd3; 1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.e3 Bb7 5.Bd3 d5.
Questions
What are the moves of the Queen's Indian Defense: Spassky System?
The Queen's Indian Defense: Spassky System starts 1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.e3. Its ECO code is E14.
Is the Queen's Indian Defense: Spassky System good for White?
Stockfish 17.1 rates the position −0.08 at depth 20, which is level. In 228 lichess games from our sample, White scored 51.3%. A low-risk choice for White players who like set-up play, and Black reaches easy equality with natural moves.
What is the main idea of the Queen's Indian Defense: Spassky System?
White chooses a quiet setup with e3, b3, Bb2 and Bd3. Black develops with ...d5, ...Bb7 and ...Bd6 or ...Be7, then breaks with ...c5.
What should Black play next?
The engine's first choice is d5, with Bb7 and Be7 close behind. 4...d5 takes the center and lets the dark-squared bishop develop to d6 or e7.
Related lines
- Queen's Indian Defense
- Kasparov Variation
- Classical Variation
- Fianchetto Variation
- Kasparov-Petrosian Variation
- Capablanca Variation
Updated October 2026. Sources and method.