Episode Details

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. Na3 e6 2. Nb5 d5 3. Nxc7+ Qxc7 4. d3 Qd8 5. Bd2 Nf6 6. Ba5 Be7 7. Bxd8 Bxd8 8. Qa4+ Bd7 9. Qa3 Be7 10. Qb3 Nc6 *

And the answer is...
White’s move 8. Qa4+ is illegal as the c2 pawn has not moved and is blocking the Queen from moving on that diagonal.