🧠🧠 Unwell Bird of Prey (Illegal Move Exercise)

Illegal Move Exercise: Somewhere in the game below is an illegal move. Find it and identify why it is illegal.

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PGN for today's exercise:

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. Nf3 Nf6 5. d4 Bf5 6. Bc4 e6 7. a3 Nbd7 8. Bg5 Ne4 9. Bd2 Nxd2 10. Qxd2 Be7 11. O-O c6 12. b4 Qh5 13. a4 O-O 14. a5 a6 15. Bb3 Rfd8 16. Ne2 *

Answer at the end of the episode.

Exercise designed by WFM Tihana Ivekovic

Exercise audio generated with the help of AI to ensure clarity and to avoid human (that is, mine) errors in the exercise recording itself. Exercise design, music, show notes, answer explanations, and everything else were done by humans.