Caissa Codex
D41

Queen's Gambit Declined: Semi-Tarrasch Defense 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: Semi-Tarrasch Defense

Play Black's moves of the line from memory — 1. c4 c5 2. Nf3 Nf6 3. Nc3 Nc6 4. g3 d5 5. d4 e6 — 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: Semi-Tarrasch Defense page, or pick another opening in the opening trainer.

https://chesscodex.org/train/queens-gambit-declined-semi-tarrasch-defense-3