[suddenclarity]

Reading the post and OP's comment, I think he approaches it the wrong way and actually try to count when a quick glance would eliminate 4 out of 6 options. If you see 6+5+4 you just know it's too high or 1+2+2 is way to low. Not much serious counting needed.

However, that 6/9 really threw me off and came across as terrible design.

[Tronno]

> Not much serious counting needed.

An optimal algorithm that solves the normie's problem by completely ignoring it.

I.E. "you're holding it wrong"

Would you offer this solution to a 13-year-old using GitHub for a school project? Or a 60-year-old trying to keep up with tech? Or a busy parent trying to catch up on things after a long day?

This utter lack of empathy saddens me.

[suddenclarity]

Your incorrect assumption based on what I wrote and low expectations of others saddens me.

[Tronno]

The comment speaks for itself: "I think he approaches it the wrong way," and the only problem is the ambiguous 6/9.

If there's something else you intended to say, I'd love to see a clarification.

[gcr]

Most folks aren't used to that kind of back-of-envelope mental arithmetic.

[SpaghettiCthulu]

There's a line under the 6 for a reason. It tells you the correct orientation.

[suddenclarity]

I was looking for that but the line isn't visible on my computer unless I zoom in far. Maybe more obvious when doing the captcha for real and not looking at a compressed image.

[mattnewton]

Easy to miss in a timed operation that is threatening to lock you out of an account you might need to do your job.

[LinAGKar]

The line is barely visible due to the compression