Color recognition, how to recognize multi-colored letters on a multi-colored background in Python?

Question

CAPTCHA

I'm trying to make a bot for a game in Python with solving captcha, captcha of the following format:
Pytesseract recognizes text crookedly, I had to format it in BW like this:
thresh = 30
fn = lambda x: 255 if x > thresh else 0
bw = primer.convert(' L').point(fn, mode='1')
Improved, but accurate recognition occurs in 50% of cases, fiddling with parameters, doesn't really help.
How to make recognition as efficient as possible? And what is the simplest way from a text variable, for example: "x = eight + five = ?" make a digital example?

Answer 1

In this case, there are only three possible answers. Therefore, it is not necessary to recognize the captcha. You can click the answer at random and then the probability of the correct answer will be 33% (100% / 3). And this is even higher if you try to solve the captcha, where errors are also possible.