🧠 Call the Arbiter (Illegal Move Exercise)

The following is a conceptualization training exercise from don't move until you see it.

Completely exercise using only your mental board, pause and repeat as often as you need to.

Find the illegal move from the static position, one, night F3, D5, two, G3, C5,

three, bishop G2, night C6, four, D4, C takes D4,

five, night takes D4, E5, six, night takes C6, B takes C6,

seven, bishop takes C6, check, bishop D7, eight, bishop takes A8,

queen takes A8, nine, short castle, night F6, 10, B3,

bishop E7, 11, bishop B2, short castle, which move was illegal?

If you haven't quite got it yet, pause as often as you need to, but when you're ready to check the answer, you'll find it in the show notes.

And if you want more exercises like this, head over to don't move until you see don't it. Here's to the journey.