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.
To learn more about Don't Move Until You See It and get the free 5-day Conceptualizing Chess Series, head over to https://dontmoveuntilyousee.it/conceptualization
PGN for today's exercise:
- e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7.Nxc6 bxc6 8.Be2 Be7 9.0-0 0-0 *
And the answer is...
White's move 7.Nxc6 is illegal because there is nothing to capture on c6.