AI Chess TeacherSupport d5, then find a future for every piece.
1. d4 d5 2. c4 e6
Choose the QGD if you like connected pawn structures and strategic decisions that can be explained through central tension. It teaches patient preparation, useful exchanges and the role of liberating pawn breaks. The opening has many systems; the catalogue includes a normal ...Be7 setup and more active bishop or ...c5 branches that should be learned separately.
White can bring a bishop out to attack a defender of d5 while keeping the pawn choices open. The move adds pressure but does not immediately win material.
1. d4 d5 2. c4 e6 3. Nc3 Nf6
Position notation (FEN)
rnbqkb1r/ppp2ppp/4pn2/3p4/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq - 2 4
Three ideas to remember
The central tension gives choices to both sides
White's c4-pawn attacks d5, while e6 supports Black's centre. Capturing changes pawn files and piece routes. Before exchanging, ask who gains a developing recapture, which file opens and whether a central pawn becomes isolated. Keeping tension can be useful when it limits the opponent's options.
The c8-bishop needs a plan
The e6-pawn blocks the bishop's easiest diagonal. Black can develop around it, seek a later ...e5 or ...c5 break, or arrange another route for the bishop. A temporarily restricted piece is not automatically a bad opening, but forgetting about it can make the entire position passive.
Bg5 pressures a defender rather than winning a pawn
A bishop on g5 can pin the f6-knight to the queen when the intervening e7-square is clear. Black's ...Be7 prepares a response and king safety. Assess the actual line behind the knight before calling it a pin or calculating a central capture. A relative queen pin does not make moving the knight illegal.
Turn the structure into a plan
White's plan
White develops Nc3 and a bishop actively, often uses Nf3 and e3, and decides when exchanging on d5 helps the remaining pieces. Keep central space connected to development. If Black establishes a compact defensive setup, prepare a pawn break or improve a piece rather than launching a wing attack without enough participants.
Black's plan
Black develops ...Nf6 and the kingside bishop, castles and prepares a freeing central operation. ...c5 directly challenges d4, while a well-prepared ...e5 can also open the position. The correct timing depends on piece support and tactical pins. Complete a plan for the c8-bishop before assuming the pawn chain will protect every weakness indefinitely.
Common mistakes
Assuming the ...c5 branch keeps the same pawn chain
The Tarrasch introduction below exchanges c4 for Black's e-pawn after ...c5. That changes the structure immediately and can later create an isolated pawn. Do not use plans for an intact e6–d5 chain after e6 has disappeared; identify the new open files and central targets.
1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6
Calling every attacked knight absolutely pinned
In the catalogue's main introduction, Bg5 attacks Nf6 along a line toward the queen. It is not an absolute king pin. Black may be able to move the knight with a tactical reason. Count the actual target behind it before treating the knight as immobile.
Representative variations
These are introductory sequences from existing training lines, not a complete repertoire or a promise of a forced result.
Queen's Gambit Declined
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7
Queen's Gambit Declined develops Nc3 and Bg5 while Black uses ...Nf6 and ...Be7. This is a compact starting framework for development and castling.
Queen Fork
1. d4 d5 2. c4 e6 3. Nc3 Bb4 4. e3 Nf6 5. a3 Bxc3+ 6. bxc3 O-O
Queen Fork uses ...Bb4 and an exchange on c3 after a3. White's pawn structure changes, while Black gives up a bishop; evaluate both consequences.
Tarrasch Trap
1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6
Tarrasch Trap challenges the centre with ...c5. The central exchanges create a different structural family from the quieter Main Line.
A practical exercise
White to move in the diagram above
Find the bishop move used in the main catalogue introduction. What piece lies behind the f6-knight on that line?
1. d4 d5 2. c4 e6 3. Nc3 Nf6
Reveal the answer and explanation
4.Bg5 develops the c1-bishop and attacks Nf6, with Black's queen on d8 behind it along the diagonal. This is a relative queen pin, not an absolute king pin. Black can answer ...Be7 and continue developing; White should not assume the centre is now undefended.
Frequently asked questions
Does declining mean Black never captures c4?
No. Black declines on move two but may capture later when it gains time or clarifies the centre usefully. The timing of the capture is the important strategic decision.
Is the QGD the same as the Slav?
No. ...e6 restricts the c8-bishop; the Slav's ...c6 initially leaves its diagonal open but blocks the queenside knight's natural square. Similar support for d5 has different development costs.
Understand it. Then practise it.
Learn the compact Main Line first, then compare the ...Bb4 exchange with the ...c5 structure. At every capture, identify which original pawn has left the board. Practise naming a future job for Black's c8-bishop so the solid centre becomes an active defensive position.
Practice this openingChoose a line in the catalogue. Existing free and Premium access rules apply.