Queen's Gambit Declined: Modern Variation: Plans and Traps

Key ideas for both sides

White

e3, Nf3 and Rc1 form the classical setup, aiming at c7 and preparing cxd5 at a good moment.
After ...h6, choose Bh4 to keep the pin or Bxf6 to win time and aim for a small edge.
Against ...Nbd7, do not take d5 with the knight after an exchange; that is the Elephant Trap.
Against ...dxc4, play e3 and Bxc4, then use the open lines for quick castling and central pressure.

Black

4...Be7 is the safest: it breaks the pin and prepares ...O-O, ...h6 and ...b6.
4...dxc4 5.e3 c5 frees the game, and after Bxc4 cxd4 exd4 White gets an isolated pawn.
4...c5 is the Been-Koomen; after cxd5 cxd4 Qxd4, Black accepts open lines and active play.
...Nbd7 guards f6 and sets the Elephant Trap: a knight grab on d5 runs into a ...Bb4+ check.

Plans and pawn structure

The pin on f6 is the theme. White builds with e3, Nf3 and Rc1 and keeps the option of cxd5 with a minority attack or a later e4. Black unpins and castles, then chooses a system: ...h6 and ...b6 for the Tartakower, ...Ne4 for Lasker trades, or ...Nbd7 and ...c6 for the Orthodox. The direct ...dxc4 and ...c5 gives Black open lines in exchange for letting White's bishop recapture on c4.

What the engine plays from here

Stockfish 17.1 at depth 20 rates the position +0.12: level. Its three top choices for Black:

+0.12 4...Be7 5.e3 O-O 6.Nf3 h6 7.Bh4
+0.17 4...dxc4 5.e3 c5 6.Bxc4 cxd4 7.exd4
+0.24 4...c5 5.cxd5 cxd4 6.Qxd4 Be7 7.e4

Pawns, from White's side.

How it scores on lichess

4,704 rated lichess games reached this position; White scored 54.9%.

under 120065.4%

1200–159953.9%

1600–199955.4%

2000 and up53.3%

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

Traps and pitfalls

Elephant Trap (Black sets it)

White takes the d5 pawn with 6.Nxd5, trusting the pin on the f6 knight. Black breaks the pin with 6...Nxd5, and after 7.Bxd8 Bb4+ White must give the queen back, ending up a piece down.

The Elephant Trap explained

Where it goes next

Modern Variation, Knight Defense4...Nbd7 · 512 games
Been-Koomen Variation4...c5 · 170 games
Semi-Tarrasch Defense, Krause Variation4...c5 · rare
Orthodox Defense, Classical Variation4...Be7 · rare
Cambridge Springs Defense, Argentine Variation4...Nbd7 · rare
Orthodox Defense, Fianchetto Variation4...c6 · rare

How to play against it

As Black, start with 4...Be7 and short castling, then pick a plan you know. If you prefer sharp play, 4...dxc4 with ...c5 is sound. If you play ...Nbd7, remember the Elephant Trap but do not rely on it; most White players know it.

Questions

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

The Queen's Gambit Declined: Modern Variation starts 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5. Its ECO code is D50.

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

Stockfish 17.1 rates the position +0.12 at depth 20, which is level. In 4,704 lichess games from our sample, White scored 54.9%. The main classical line for White; Black has several respected systems but must know which one fits their style.

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

White pins the f6 knight to make d5 harder to hold. Black unpins with ...Be7 and castles, or frees the game at once with ...dxc4 and ...c5, while ...Nbd7 sets the Elephant Trap.

What should Black play next?

The engine's first choice is Be7, with dxc4 and c5 close behind. 4...Be7 breaks the pin at once and keeps every Black system open.

Updated October 2026. Sources and method.

Queen's Gambit Declined: Modern Variation