Caissa Codex
D57

Queen's Gambit Declined: Lasker Defense, Main Line trainer

Back to the opening, all openings to practise or my repertoire

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: Lasker Defense, Main Line

Play White's moves of the line from memory — 1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. Bg5 h6 6. Bh4 O-O 7. e3 Ne4 8. Bxe7 Qxe7 9. cxd5 Nxc3 10. bxc3 — and the trainer plays Black's replies; "Play the other side" turns it around.

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

https://chesscodex.org/train/queens-gambit-declined-lasker-defense-main-line