Caissa Codex
C33

King's Gambit Accepted: Bishop's Gambit, First Jaenisch Variation trainer

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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 King's Gambit Accepted: Bishop's Gambit, First Jaenisch Variation

Play Black's moves of the line from memory — 1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ 4. Kf1 Nf6 — 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 King's Gambit Accepted: Bishop's Gambit, First Jaenisch Variation page, or pick another opening in the opening trainer.

https://chesscodex.org/train/kings-gambit-accepted-bishops-gambit-first-jaenisch-variation