Friday Fun: Test Your "Eyeballing" Skills

Have you ever put up a picture and just “eyeballed” it instead of using a level? Chances are you stepped back, and realized it was way off, and then had to fix it. That’s the basic idea of this surprisingly fun flash game, which tests your eyeballing skills.

If this game isn’t your style, you can check out GemCraft, our last Friday Fun, or browse through Mysticgeek’s archive of fun stuff.

Playing the Eyeballing Game

The basic idea is using your mouse to find the mid-point in a series of geometric shapes. For instance, in this one you need to move the mouse to the point where all of the lines would normally meet if they were to continue in the same path as the arrows.

In this one, you have to adjust the lines to make a parallelogram…

And here, you need to find the mid-point of the circle.

This is the closest I ever got to being accurate…

Overall, I wasn’t too terribly great at this game – here are my results by category.

At the end they tell you how well you did against the last 10,000 people that played it (completely anonymously)

This is one of those games that you’ll never think is fun until you try. So how well did you do?

Play the Eyeballing Gaming on woodgears.ca

Lowell Heddings, better known online as the How-To Geek, spends all his free time bringing you fresh geekery on a daily basis. You can follow him on if you'd like.

• Published 01/23/09

1. Hatryst

Cool! A must play for mathematicians!

2. Eric

great game; accurate to 0.0 units; oh yeah

3. WOFall

Parallelogram 4.1 1.4 3.6
Midpoint 3.6 0.0 6.1
Bisect angle 0.5 1.4 0.9
Triangle center 4.0 5.7 2.0
Circle center 3.2 5.1 5.8
Right angle 21.4 16.2 15.5
Convergence 4.0 4.1 3.0

Average error: 5.31 (lower is better)

Apparently the aspect ratio on my monitor is wrong, which causes the rather crappy ‘right angle’ score (which i drew perfectly ;) ) http://woodgears.ca/eyeball/square.html

4. B Banks

Sweet! I was in the top 500 last games with an overall of 1.80 :D

5. The Geek

@B Banks:

Well you beat me pretty soundly! I shall have to play again =)

6. Soph

7. James

Oh man, I thought I left math behind when I graduated high school. Thanks for the new nightmares!

8. charlene

The right angle is not anywhere near to being 90 degrees. After playing a few times I decided to check it…not a right angle.

9. charlene

OOOPs…I just read the “aspect ratio” information. My mistake. ;-)

10. sul2005tan

great games I get 8.07 ..

11. John

@ James…

High School? Heck! My son is doing this in 3rd grade elementary!!! Unbelieveable! Poor kids!!!!!

More Articles You Might Like

• Get exclusive articles before everybody else.