key:
Additional fields:
Cyrillic alphabet
2 words
cAse sensitive
numeric captcha
mathematical operation
minimum length
minimum length
Add additional flags in your code:
TAG POS=1 TYPE=INPUT:CHECKBOX FORM=ACTION:http://pixodrom.com/in.php ATTR=NAME:regsense CONTENT=1
for min_len / max_len:
TAG POS=1 TYPE=INPUT:TEXT FORM=ACTION:http://pixodrom.com/in.php ATTR=NAME:max_len CONTENT=15