Switched has a new home! Huffpost Tech.

Click here to visit the new home of Switched!

Hot on HuffPost Tech:

See More Stories

AOL Tech

AOL
MAIL

Switched

Tech Tips

A Baker's Dozen Tips for Spring Cleaning Your Mac

Advice

Switched's Comprehensive Guide to Video Game Emulators

Top 25 Optical Illusions on the Web 2

by Peter Mychalcewycz on September 17, 2008 at 06:00 AM

How Many F's

We got this wrong the first time and we aren't ashamed to admit it. We hope you have better luck. Count how many F's there are in the illusion. We doubt you will get it right, but we wish you the best. Honestly.

From: echalk

<< Back Next >>

Comments

LanaSep 17th 2008 11:59AM

Neutral

The yellow dots begin to disappear

Dislike

Report

JessySep 17th 2008 12:07PM

Neutral

it took me a couple minutes to get a reaction. the blue lines will disappear

Dislike

Report

AmandaSep 17th 2008 12:09PM

Neutral

I stared at the middle dot, and eventually the other dots disappeared from my sight as long as I didnt blink or move my eyes. Pretty cool!

Dislike

Report

dweilermgSep 17th 2008 12:42PM

Neutral

LAME! Stared at center dot and NOTHING happened! Is rthis the best U can do?

Dislike

Report

AmySep 17th 2008 12:55PM

Highly Ranked

You have to click on the link to see the correct illusion! And when I did that (becuase the blue lines move when you visit the site), the dots would blink.

Dislike

Report

JENSep 17th 2008 12:57PM

Neutral

You have to click on the link first. Don't be stupid and stare at the box that is above, nothing will happen. The blue lines don't disappear either, when you click on the link, you will see that it is the yellow dots that disappear.

Dislike

Report

rescueproductsSep 17th 2008 6:05PM

Neutral

LMFAO!! Bunch of morons here....

Dislike

Report

DerickSep 17th 2008 8:56PM

Neutral

yeh me too... nothing happened...

Dislike

Report

hauntedgraceySep 17th 2008 9:15PM

Highly Ranked

if you stare at the still image, nothing happens...you have to click on the link to get the correct illusion.

Dislike

Report

MeSep 17th 2008 9:37PM

Neutral

It's lame, nothing happened. I stared till my eyes were burning.

Dislike

Report

alekseySep 17th 2008 10:54PM

Neutral

3 yellow dots disappeared!!

Dislike

Report

nunyaSep 17th 2008 10:35PM

Neutral

this one didn't work for me...but does anyone remember the pictures they used to sell at the malls that were nothing but optical illusions??

Dislike

Report

ShamelessSep 17th 2008 10:38PM

Neutral

Don't blink and u can c it It worked for me in a matter of seconds

Dislike

Report

JacqueOSep 18th 2008 12:16AM

Neutral

When I clicked on the link, it shows the middle dot flashing and the whole grid turning. The other dots disappear and it doesnt take very long for it to been seen

Dislike

Report

PurrenSep 18th 2008 1:08AM

Neutral

Center dot disappears completely! I hope this the right answer?

Dislike

Report

fishculture2000Sep 18th 2008 1:18AM

Neutral

After only about 10 seconds the upper right dot disappeared. I remained fixed on the center dot but saw this with some sort of periferal vision. Soon the other two also disappeared. Blinking or moving my focus broke the illusion but it certainly works as long as you focus on the center dot.

Dislike

Report

danielOct 20th 2008 1:48AM

Neutral

i've stared at it for an hour and nothing happens!

Dislike

Report

TammyCOct 30th 2008 5:03PM

Neutral

I was annoyed at this also. I went back and clicked on the site of the "F" puzzle and it took me to the homepage where the puzzle is, along with many more puzzles. It would be exceptionally nice if AOL would make this a little simpler.

Dislike

Report

AnthonyROct 30th 2008 9:27PM

Neutral

Yea, I thought there were f's here, not blue dots or yellow lines....
I counted 10 f's...

Dislike

Report

WillOct 31st 2008 3:30AM

Neutral

Me too. They must have changed the puzzle.

When I go to the 'F' site, and they are animated, I count 16... but there is no provided answer anywhere. It's driving me nuts.

Dislike