🧠 Can They Do That? (Illegal Move Exercise)

Illegal Move Exercise: The audio will lead you through a series of moves from the beginning of a game. Somewhere in there, a player will make an illegal move but the game will continue anyway. Find the illegal move.

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PGN for today's exercise:

1. Nf3 d5 2. g3 c5 3. Bg2 Nf6 4. O-O Nc6 5. c3 Bg4 6. d4 Bd6 7. Bf4 e5 8. dxe5 Bxf3 9. Bxf3 Nxe5 *

And the answer is...
Black's move 6... Bd6 is illegal because the Bishop is blocked by the pawn on e7.