Caissa Codex
B06

Modern Defense: Mongredien Defense, with Nf3 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 Modern Defense: Mongredien Defense, with Nf3

Play Black's moves of the line from memory — 1. e4 g6 2. d4 Bg7 3. Nf3 b6 — 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 Modern Defense: Mongredien Defense, with Nf3 page, or pick another opening in the opening trainer.

https://chesscodex.org/train/modern-defense-mongredien-defense-with-nf3