Caissa Codex
D35

Queen's Gambit Declined: Exchange Variation trainer

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Type a move and press Enter: e4, Nf3, O-O, or from and to squares like g1f3 (e7e8q to promote). The board is also played with the mouse.

Practise the Queen's Gambit Declined: Exchange Variation

The Exchange Variation of the Queen's Gambit Declined (1.d4 Nf6 2.c4 e6 3.Nc3 d5 4.cxd5, or 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.cxd5) fixes the central pawn structure at once. Play White's moves of the line from memory — 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 — and the trainer plays Black's replies; "Play the other side" turns it around.

"Drill all" adds the 8 named lines that continue it, such as Queen's Gambit Declined: Exchange Variation, Positional Variation, Queen's Gambit Declined: Exchange Variation, Reshevsky Variation, Queen's Gambit Declined: Exchange Variation, Carlsen Variation, Queen's Gambit Declined: Exchange Variation, Chameleon Variation.

Read about the line, its statistics on Lichess and Stockfish's evaluation on the Queen's Gambit Declined: Exchange Variation page, or pick another opening in the opening trainer.

https://chesscodex.org/train/queens-gambit-declined-exchange-variation