Credit to Neal Agarwal.
I just played this earlier today. I got tripped up on rule 20 then when I had recovered my browser crashed and it made me start over 😩
I got to Rule 16 here. I had problems because the captcha contained chess notation, so for me to get past it I had to also regenerate the captcha to one that didn’t violate any of the other rules. After five attempts I gave up.