Caissa Codex
A45

Trompowsky Attack: Raptor Variation, Hergert Gambit 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 Trompowsky Attack: Raptor Variation, Hergert Gambit

Play Black's moves of the line from memory — 1. d4 Nf6 2. Bg5 Ne4 3. h4 Nxg5 4. hxg5 e5 — 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 Trompowsky Attack: Raptor Variation, Hergert Gambit page, or pick another opening in the opening trainer.

https://chesscodex.org/train/trompowsky-attack-raptor-variation-hergert-gambit