University Class Optical Illusion


Hy people, glad you liked my previous illusion video clip. I see you managed to write over 100 relevant comments in less than a day. I’m still under impression of that illusion clip. Not to bore you with my sentiment, here’s another illusion of the day for all of you. Well, its more of a puzzle, but it can be understood as an illusion as well, since at the first glance you believe both photos are identical.

It was created for the Smartkit website, and they hold legal rights for this piece. You can find more cool stuff on their main page. Your assignment is to spot all the little differences, and believe me – there are many! For example, see that girl in the middle wearing a blue pullover? She’s also wearing glasses in first photo, while she misses them in the second. How many differences can we spot together? Please limit your self to only one difference per post, so other visitors can have their part of engagement. Although this is spot the object type of illusion, its first of a kind on this site, I’ll try to post more if you like it, and in the mean time lets solve it!

  • Yana

    The facial expressions on the girl in white and the girl in black are switched.

    Kind of a spoiler:
    You could just tilt your head sideways(or somehow display the images side-by-side) and relax your eyes until one eye is looking at one picture and the other is looking at the other one. (like stereoscopic vision stuff)then you can see all the differences right away since they don’t match up.

  • Mike

    Optical illusions are more fun!
    More of them please :D

  • Anonymous

    girl in white sweater and second row has a different facial expression

  • Andres

    The girl near the left has on a blue shirt on top and a pink shirt on the bottom.

  • Stone

    second row, middle girl, switched writing hands.

  • Ryan

    There’s a girl disappeared. on the top picture, there’s a girl near the top right. on the bottom picture, she’s not there.

  • Anonymous

    here’s one:
    in the top row,
    one boy is wearing a red and white striped shirt in the first photo and blue and white striped shirt in the 2nd one.

    ps. i like these types of illusions!!

  • morgan

    the guy in the top middle, white and red stripes in the top pic, white and blue stripes in the bottom.

  • Anonymous

    the guy in the back with the striped shirt has blue stripes in one and red in another. i love mighty optical illusions, and the guy who runs it is funny!

  • Anonymous

    the fat boy near the top is wearing a different colour striped shirt

  • Anonymous

    The girl in the 2nd row with the white sweater and the girl just above her had their faces switched entirely (not just their expressions).

    2 girls in the top row were photoshopped out.

  • Jubilee

    In the middle, right side of the top photo, there is a dark-haired girl wearing a purple sweater and glasses. When she transfers to the bottom photo, her sweater becomes green… ;-)

  • Anonymous

    Cool spoiler trick! I thought I found them all and then when I tried that tilt head / double vision thing, One more popped out at me! I never thought of doing that… thanks Yana, for teaching me something new.

  • Louie

    Here’s what I’ve found so far:
    1.The girl in the second row in the white sweater has her face switched with the girl directly behind her in the bottom photo
    2.The young man in the second row is right handed in the top photo, left handed in the bottom.
    3.The girl on the far right in the third row is wearing a purple sweater in the top photo, a green sweater in the bottom.
    4.In the same row to the far left, the girl in the top photo is wearing a blue sweater and in the bottom, it’s pink.
    5.In the sixth row, there are two people missing in the bottom photo
    6.At the very top of the top photo, the young man is wearing a red striped sweater while in the bottom, the stripes are blue.

    That’s all I’ve seen so far and that could very well be it.

  • Anonymous

    If anyone has a Mac w/Pages (i don’t know if you can do this in word/appleworks) you can crop two of the pictures, one of the top, one of the bottom, and put them into a pages document, one directly on top of the other, and slide the opacity bar in the inspector down to zero and up to 100% while you are clicked on the top photo. You can see the parts of the picture that are different change.

  • Chiz

    The girl in the blue sweater’s (she’s next to the girl in the brown shirt) pens change hands from being on the right side in the top photo to being on the left in the bottom.

  • Ribbed

    Starting with the front row…

    1 – I found no differences

    2 – 2nd person is now a lefty and wearing no glasses, 3rd person has face switched with person above

    3 – blue sweater turns pink, face switched with person below, purple sweater turns green

    4 – I found no differences

    5 – 2 people removed from this row

    6 – red/white stripes become blue/white

    That’s all I could find.

  • K

    a girl in the top left also dissapeared

  • ariella

    woah coolie….i love how the changes are so subtle. It must have been hard to take those pictures though haha

  • Collective

    top left theres a girl in the top photo with a white sweater but not in the 2nd.

  • jessicaheick2003

    The guy in the blue hooded sweatshirt has someone behind him on top, but not on the bottom pic.

  • Anonymous

    missing girl with white sweater in top left corner about 3rd row in top pic and 4th row bottom pic

  • Anonymous

    Yana is right!

    If you open the full picture (click on the picture), tilt your head sideways and cross your eyes (like you do with the sterioscopic images where if you do that it makes them 3D) all the differences really stand out!

    Thanks Yana

  • RegularVisitor

    I CANT SEE THE PICTURE… where is it? the image link also does not work.

  • Lorenzo

    The one who lost the glass is now left-hand

  • Dejan

    Actually, if you do “the stereoscopic look”, you don’t see that the pullover color is different, but other differences can clearly be seen

  • Anonymous

    i can usually see sterograms, but i can’t do what Yana said, can someone explain?

  • Anonymous

    have you realised how no1 is reading other peoples comments! ur spotting the same things! love ur site by the way x x x

  • Anonymous

    this one is pretty boring, has nothing to do with optical illusion…

  • L i s a

    The girl in the row behind the girl in the white sweater to the right was wearing a black shirt and then switched to green

  • Sexy

    I’m Mega Ultra hot. So is Lisa

  • Elliexx ANIMALS ROCK!! Abi xx’s friend!

    wow quite kl! its only gd becoz it wasnt too obvious (even thou i spotted it straight away! lol! :P).

  • Anonymous

    I have two I don’t see anyone else noticing…

    There’s a woman in the back, wearing a red sweater. In the top picture, she’s wearing a dark headband. In the bottom picture, the headband appears to be green.

    In the second row, and I’m surprisedI haven’t seen anyone spot this, the second girl from the left is writing with her right hand, and in the bottom picture she’s become left handed.

  • Elliexx ANIMALS ROCK!! Abi xx’s friend!

    WARNING: dont read mine if u want to spot the differences yourselves!!

    i think there r 7 things that r different:

    1. the women near the front (one had a black top on, the other (sitting in front of her) had white), changed expressions.
    2. the boy on the second to last row had (in one picture) red and white stripes, and in the other picture, had blue and white stripes.
    3. a girl in the 3rd to last row (in a white jumper) disappeared in the second photo!
    4. the girl on the far right, in the 3rd to front row, changed from having a purple jumper, to a green jumper.
    5. the girl on the far left in the 3rd to front row changed from having a blue jumper on to having a pink jumper on.
    6. the girl in the middle in the 2nd to front row changed from having glasses on, to not having them on.
    7. also (the same girl in difference: 6 (the one in the blue jumper)) changed from having her pen over to the left, to having it over to the right.

    have fun spotting others!

  • andy

    they all seem a little gayer in the second picture… is that right?

  • Anonymous

    The girl in the example is also holding her sharpie a different way in each picture.

  • courtney

    no one switched facial expressions…
    look again.
    they switched from one girl wearing glasses, to the other girl wearing the same pair.

    in fact, there is three or four changes with glasses.

  • Anonymous

    the girl wearing the red sweater is wearing a brown headband in the first picture and a blck one in the second picture.

  • brian

    this isnt an illusion its a wheres waldo.

  • Elliexx ANIMALS ROCK!! Abixx’s friend!

    anonymous no. 38: they did switch glasses but they also switched facial expressions. u look agen.
    also ive found another difference:
    the girl in the middle on the second row bak switched the pen over to her right hand to her left.

  • Elliexx ANIMALS ROCK!! Abixx’s friend!

    oh from my previous comment i meant ‘courtney’, not anonymous no. 38.
    also, btw, i didnt spot that someone had already pointed out my previous difference that i found! soz.

  • Anonymous

    Ilusion¿? Just a bad newbie tryout..the first pic is the original, the below, a bad photoshop. 10 minutes do do that with any picture, can only fool because the image is so small.

  • Anonymous

    The ONLY similarity is that everyone is very hideous


  • Elliexx ANIMALS ROCK!! Abi xx’s friend!

    no, anonymous 43, u can open it up (by clicking on it) and it becomes bigger! u can tell the things look clearer wen u open it up!
    but yh i agree with anonymous 43 – they r all hideos! lol :D

  • Red.

    All I can say is those girls with the switched faces are really starting to creep me out..

  • Shauzia


  • jotom!cron

    I’ve seen 9 differences

  • Danger Machine

    my answer… loads

  • Anonymous

    third row on far left has diffrent shirt colors

  • Anonymous

    its soooooooooooooooooooooo easy i like saw everything at first glance if you dont c anything at first glance you cant see anything

  • Anonymous

    Weird. I imediatly saw that there was something different between the two pictures but I could not put my finger on it at first.

  • Anonymous

    The girl near the left has on a blue shirt on top and a pink shirt on the bottom also on the second row the middle girl has switched writing hands.

  • Anonymous

    girl with sweater has a different facial expression and more people was add to the photo by the stair part

  • Anonymous

    LOOK CLOSER PEOPLE: there are more, you just have to really look for them, here’s one – There is a girl in the 6th row on the far right (she has black hair with a white pullover type shirt). Not only is she missing from the secoond pic so is the paper on the table to the left of her.

  • dippiddydoo94

    The giel, with the glasses that dissappered, is writing with different hands in each picture.

  • Anonymous

    I found 8 :)

  • Anonymous

    the girl in the first picture in the 2nd row with the with jacket she is happy but in the 2nd picture she is not happy

  • Nyricanamazon

    Guy in the back has different colored shirt. There are 2 girls completely missing from the picture, one girl is wearing purple shirt in first which is now green in second. Blonde in same row is wearing blue shirt, is wearing pink in second. The 2 girls have switched faces and the one person with the blue sweater in second row is a righty in first pic and a lefty in second.

  • Danny

    No one has swapped facial expressions, the whole face has been swapped if you look carefully!

  • Detective Kitty

    i see 9

  • Ribbie

    Hey, the photoes are taken at different angles!!!

  • Bikram

    There’s a girl missing on the third row from the top in the second picture!

  • stephanie

    the girl he mentioned in the middle in the dark blue shirt and the girl right in front of her in the white sweater, their faces have been switched. thats why shes not wearing glasses. and the other is. look closely, same facial expression on both girls but in different pictures

  • Louise

    I spotted 10 altogether x

  • Kittay

    life magazine much?

  • Aiden

    2 people have swapped faces :0

  • niki

    isnt much of an optical illusion – isnt there a site for spot the differences!

  • Anthony

    3rd row. Far Right. First picture. Shirt color changes from purple to green.

  • who cares

    wow nice photoshop skillz… you can tell the girl in white on the third to top row on the left isn’t there in the second pic… but the shadow from her paper hanging over the desk is still there

  • Phrolica

    I agree wiht Niki (Jan 5) This isn’t an illusion. It’s a “spot the difference” type of picture.

  • blarg

    the girl in the white beside the girl in the blue had glasses in the first picture but not in the second.

  • Windrasto

    I found 10

  • james

    i found 8

  • unknown

    found 8 also including Vurdlak’s discovery
    eg. a guy in the back has red striped shirt in one pic but blue striped shirt in the other

  • anon
  • Hayyley

    I think there are 10 differences if you include the disappearing paper at the right side of the black haired girl.

  • Zokimaster

    9 differences together.
    Best to find is if you save both pics and then look at them in full screen going forward/back/forward/back, etc..
    3 x sweaters changing color
    2 x person missing
    2 x person (ex)changing face
    1 x glasses missing plus 1 x left/right hand writing.
    I hope I didn’t reveal too much – because I didn’t tell where are these details. ;)

  • Giltinas

    “…please limit your self to only one difference per post, so other visitors can have their part of engagement.” ty for that all >.>

  • John

    It’s not photoshopped, you nob-jockey. It’s 2 different photographs, hence the different facial expressions.

  • Owen VInni

    this is not a optical illusion, its a photoshopped image, damn, just copy them both and switch the layers, you can easily see which parts of the image are fake

  • Nellie

    The girl next to the stairs is missing in one pic.
    The girl in the blue is wearing pink in the second pic.
    The girl in the white sweater disappears in the second pic.
    The girl in the purple sweater is wearing green in the second.
    Second row- girl with the white sweaters face changes completely lol.
    Guy with the red stripped shirt turns into blue stripes.



    very cool I found some ones but the guys already wrote those differences.

  • Aaron

    There is no way that this isn’t photoshopped. For those people whose clothes changed colors, there is no way that they could possibly change shirts, and have every detail of the clothing and facial expression be exactly the same with the exception of the color. Same goes for hair. Do as another poster suggested, and save both pics to the hard drive, and use windows preview to flip back and forth between them to compare. The differences and photoshopping is quite clear. Otherwise, it’s still a cool example of what our minds will filter out when you first look at both pics and not see the differences right away.

  • Nyricanamazon

    I am a dumbshit and cannot read the rules

  • Ary26

    11! some of u are missing that some guys have the pen on the other hand

    • Chris

      Some guys? I think just one, so unless you are changing it yourself to feel you are able to see more than anyone else. I only see nine like some other people.

  • This is cool I like the way they switch hands

  • ming

    can only find 9:)

  • Praytor

    They use the “glasses here and then not there” thing too much. I found alot of differences in like 5 minutes. Too easy.

  • swim

    in the back left corner a girls missingo o_o

  • Rhiannon

    The girl in the white sweater and the girl in the black sweater are changed and there is a girl missing in the back corner.

  • Rhiannon

    and in the back the boy has a red sweater but it changes to blue

  • Rhiannon

    no there is another one missing in the back and the girl with the pink sweater changes to blue

  • Rhiannon

    and the girl with the purple sweater changes to green…

  • Rhiannon

    and the girl with glasses doesn’t have glasses…

  • shlagg2

    This sort of thing makes you realize how much we see but, not really see (the real picture) fakery ,substitution, and the like.

  • misteryusa

    the color of the shirts

  • rahul

    The girl with the white sweater is wearing glasses in the 1st photo but not in the 2nd photo

  • Liz

    The girl in the second row with the white sweater on exchanged faces with the girl directly behind her in the black shirt, which just proves that one of the photos is photoshopped.

  • look at the woman on the left. notice her jacket turns pink.

  • Loved this one, there are two guys missing the glasses.

  • Ali

    the 2 women one with the glasses and the other without has switched places with their blood relatives. Brilliant; that is why they look so much alike. The one with blonde hair has switched with the other girl with the black hair sister and wore her same sweater. And then Vice versa with the one with the black hair and no glasses.

  • Sid

    Lets start from the top…
    1) The guy is wearing a pink white t shirt and blue white in the 2nd
    2) Girl with high neck cream coloured Tshirt sitting in 3rd row from the top is missing in the 2nd one
    3) Same row…a girl with black hair is also missing
    4) 4th row, girl with pink dress …her hair color is different
    5) 6th row, 1st girl is wearing blue clothes, in the 2nd pic, she’s in pink.
    6) same row, girl in black is without her specs..and her expression is different too.. next to her is a girl dressed differently in both pics
    7) 7th row, 2nd guy in blue is right handed in 1st and left handed in 2nd
    8) Same row, girl in white is different, no specs, different expression
    9) The upper pic is darker than the 2nd pic

    • Mike

      …or, you could just post ONE DIFFERENCE as requested by the poster of this. Greedy git.

    • Glen

      The girl in the Second row and the girl in the Third row have had their faces swapped (photo shopped).

    • Word Nerd

      Yes, Sid is a spoiler.
      He never follows rules.
      He thinks he’s smarter than you and me.
      He thinks he’s better than cool.
      But reading is just too hard for him
      ‘Cause he never cared for school.
      So insteaad of being angry we should
      just pity the fool!

  • Ken

    Sid you missed the most obvious one … you either cant read or comprehend what you are reading “””” Please limit your self to only one difference per post, “””” what that means is dont be a retard and try to show us look at me and can find every one of them, boy i am so smart

  • I

    The second row girl with the blue jumper was right handed, then switched hands.

  • Albert E.

    The second row guy with the blue jumper was right handed, then switched hands.

  • rob

    the girls in the 2nd and 3rd row switch faces with eachother, making them each more attractive in my opinion

  • Am.

    I can see 10 differences

  • lu

    i see 12, but i’m not sure did the chick up front in the white jumper move her head up (i know she’s not wearing her glasses anymore as well)

  • The girl in the middle of the first row is more bored in the second picture than in the first.

  • keshab

    the girl on the sixth row from bottom and 2nd form lef in first pic, is wearing pnkwhit sweter is not there in second pic.

  • ben


  • paris

    The biggest difference is that some people can not follow instructions

  • kat

    2 girls in the first are missing in the second.

  • Gray

    -First, the two images are actually the same picture, the differences are accomplished with some photoshop manipulation.
    -Second, the number of differences depends on how you count them up, but I see a total of 9.
    -There is only difference that has not been pointed out for exactly what it is: the girl in the cream sweater on the second row and the girl behind her in the black shirt have simply had their faces swapped (no removal of glasses, etc there).

    • Veggies

      For you to say that, I think EVERYONE knows that……. and plus your ruining everyone’s chance to do it on their own and PLUS mine is the last, and I bet people don’t scroll down everytime just to see my oponion on everything!!

  • Betty

    cool like this one but really glad I didn’t see the comments first; would of been nice to let each one add an answer and see if we could all come up with them but oh well.

  • Lolzater=]

    Woop, 9 differences xD in 1 min too! xD

  • Veggies

    Answers below….and Obama Burger.

    1. Girl with glasses looking up loses glasses
    2. Girl without glasses looking up gets glasses
    3. Guy with glasses looking down loses glasses
    4. Girl is gone -in far back-
    5. Girl in blue sweater gets pink sweater
    6. Guy in red sweater gets blue sweater

    I think thats all, sorry if I ruined your chance to look for yourself…….
    Obama Burger!!!!!


  • Ryanna

    theres a lot of things wrong:

    1: girl in purple shirt change to green

    2: girl switches faces

    3:guy wearing red shirt change to blue!

    im sorry if ruined but thats all i could find!

  • Aimee

    Biggest optical illusion – they look interested :)

  • Ziggy

    The people missing freak me out. Still, well done. Cheers

  • Lenore

    the first thing I noticed was the girl in the cream polar neck switching faces with the girl above her, but then I began to spot more. I like this one a lot, it’s smart. ^_^

  • Alexx

    Huh. I wonder where this picture was taken, I went to high school with the girl with the white ish sweater who has her face swapped. Her name is elspeth. Neat!

  • Turd4life

    The girl with the pink jumper looks like Mel Bibson, The girl at the top with the green jumper looks Vietnamese in the second one not Chinese.

  • toodamlazy

    the guy is right handed but left handed in the second

  • IgaveGodmyheart

    NELLIE. Your last one was gonna be mine.

  • Renee

    Girl in cream colored sweater and girl right behind her in black top have switched faces completely. I also got 11

  • Violet

    I found 11 as well. I love these types of puzzles!! Keep ’em coming!!!

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