Chess Openings Lab
a8b7c6d5e4f3g2h1

Queen's Gambit Declined: Traditional Variation

The Traditional Variation of the Queen's Gambit Declined is 4.Bg5 after 3.Nf3 d5, pinning the f6 knight before White commits the b1 knight. White wants to keep hitting d5, while Black can take on c4, check on b4, or ask the bishop with ...h6.

Moves
1.d4 Nf6 2.c4 e6 3.Nf3 d5 4.Bg5
ECO
D30
Engine
+0.03 · level (Stockfish 17.1, depth 20)
Played
1,149 games in our lichess sample
White scores
53.7%

Key ideas for both sides

White

  • Keep the pin on f6 so Black's d5 pawn has one fewer defender, and hit d5 again with Nc3 and cxd5.
  • After 4...dxc4 play 5.e4 and meet ...b5 with a4, attacking the pawn chain before it settles.
  • If Black plays ...h6 consider Bxf6: White gives the bishop pair but gains time for Nc3 and e3.
  • The b1 knight is still flexible, so it can go to c3 or d2 depending on Black's setup.

Black

  • 4...dxc4 is the most direct: take the pawn and support it with ...b5 and ...c6 after 5.e4.
  • 4...Bb4+ leads to the Vienna Variation and forces White to decide about the b1 knight right away.
  • Play ...h6 to put the question to the bishop; after Bxf6 Qxf6 Black keeps two bishops.
  • Prepare ...c5 to challenge d4 once development is done, as in several engine lines.

Plans and pawn structure

The pin on f6 shapes every plan. If Black takes on c4, White builds a center with e4 and works against the queenside pawns with a4, while Black clings to the extra pawn with ...b5 and ...c6. If Black plays ...Bb4+ or ...h6, the game becomes a classical Queen's Gambit fight where White trades on d5 and Black frees the position with ...c5. The bishop pair after Bxf6 gives Black long-term chances if the center opens.

What the engine plays from here

Stockfish 17.1 at depth 20 rates the position +0.03: level. Its three top choices for Black:

  1. +0.03 4...dxc4 5.e4 b5 6.a4 c6 7.Nc3
  2. +0.16 4...Bb4+ 5.Nc3 O-O 6.e3 c5 7.cxd5
  3. +0.19 4...h6 5.Bxf6 Qxf6 6.Nc3 Bb4 7.e3

Pawns, from White's side.

How it scores on lichess

1,149 rated lichess games reached this position; White scored 53.7%.

under 120043.3%
1200–159952.7%
1600–199952.2%
2000 and up58.8%

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

Where it goes next

How to play against it

As Black, choose your plan early. 4...dxc4 is sharp and needs ...b5 and ...c6 ready after 5.e4. If you prefer calm play, 4...Bb4+ gets a good version of the Vienna. Avoid passive moves that leave the f6 pin in place while White builds Nc3, e3 and Rc1.

Other lines with this name

The lichess opening list also files this line under the same name, though it reaches a different position: 1.d4 Nf6 2.c4 e6 3.Nf3 d5 4.Bg5 dxc4 5.Qa4+ c6 6.Qxc4.

Questions

What are the moves of the Queen's Gambit Declined: Traditional Variation?

The Queen's Gambit Declined: Traditional Variation starts 1.d4 Nf6 2.c4 e6 3.Nf3 d5 4.Bg5. Its ECO code is D30.

Is the Queen's Gambit Declined: Traditional Variation good for White?

Stockfish 17.1 rates the position +0.03 at depth 20, which is level. In 1,149 lichess games from our sample, White scored 53.7%. A solid choice for White players who like slow play against d5, while Black needs a prepared answer to the early pin.

What is the main idea of the Queen's Gambit Declined: Traditional Variation?

White pins the f6 knight with 4.Bg5 to pressure d5 before choosing where the b1 knight goes. Black answers with ...dxc4, ...Bb4+ or ...h6, each changing the type of game.

What should Black play next?

The engine's first choice is dxc4, with Bb4+ and h6 close behind. 4...dxc4 takes the pawn while the bishop is away from the queenside, and ...b5 can support it.

Updated October 2026. Sources and method.