Caissa Codex
D00

Queen's Pawn Game: Accelerated London System, Steinitz Countergambit, Morris Countergambit Accepted 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 Pawn Game: Accelerated London System, Steinitz Countergambit, Morris Countergambit Accepted

Play Black's moves of the line from memory — 1. d4 d5 2. Bf4 c5 3. e4 dxe4 — 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 Pawn Game: Accelerated London System, Steinitz Countergambit, Morris Countergambit Accepted page, or pick another opening in the opening trainer.

https://chesscodex.org/train/queens-pawn-game-accelerated-london-system-steinitz-countergambit-morris-countergambit-accepted