Caissa Codex
D66

Queen's Gambit Declined: Orthodox Defense, Fianchetto Variation 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: Orthodox Defense, Fianchetto Variation

Play Black's moves of the line from memory — 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 c6 5. Nf3 Be7 6. e3 Nbd7 7. Rc1 O-O 8. Bd3 dxc4 9. Bxc4 b5 — and the trainer plays White'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: Orthodox Defense, Fianchetto Variation page, or pick another opening in the opening trainer.

https://chesscodex.org/train/queens-gambit-declined-orthodox-defense-fianchetto-variation