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Play 'Adelson's Illusion' and you may win a $20 gift card!
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Play 'Adelson's Illusion' and you may win a $20 gift card!
Talk about the latest free online games, and challenge others to beat your high score in mahjong, solitaire  or thousands of other free games. Games ain’t just for kids, you know?
04/26/13: UPDATE - answer and winner revealed on page 33. Welcome back to the games message board! If you're joining us for the first time, we're running a contest in tandem with our brain healt
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Cat:fc5160c8-a1de-4251-a841-e32065997417Forum:ee697692-a22a-4445-bb07-43ac0932dc3d
Cat:fc5160c8-a1de-4251-a841-e32065997417Forum:ee697692-a22a-4445-bb07-43ac0932dc3dDiscussion:4185f60c-52cb-4593-b124-9ea7da22f6e2

Forums » Games » Games » Play 'Adelson's Illusion' and you may win a $20 gift card!

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Forums  »  Games  »  Games  »  Play 'Adelson's Illusion' and you may win a $20 gift card!

Play 'Adelson's Illusion' and you may win a $20 gift card!

posted at April 22, 2013 9:33 AM EDT
Posts: 334
First: January 24, 2008
Last: May 1, 2013
04/26/13: UPDATE - answer and winner revealed on page 33.

Welcome back to the games message board! If you're joining us for the first time, we're running a contest in tandem with our brain health sweeps for all you gamers who love a good brain teaser now and then. Go here to see past challenge questions marked with a sticky post.

Here's how this works: Each Monday until the sweeps ends, I'll post a brain teaser in this forum and you will give an answer in a reply post. We'll collect responses all week until midnight Thursday; on Friday the answer will be revealed and a $20 gift card will be awarded at random. A person is eligible to win whether they answer correctly or not. The sweeps is ending soon so this is our second to last challenge question. Don't miss out on the fun, play now!

Look at the drawing below. Which square is darker, square A or square B?

(Tip: click to view a larger image.)
credit: Posit Science

Want to play more brain games?
You can be coming a "student" of AARP Brain University by entering the current sweepstakes. Enter and play more fun games to keep your brain strong and have a chance to win $25,000! NO PURCHASE NECESSARY. Ends 5/5/13. Click here to play and for Official rules.

Re: Play 'Adelson's Illusion' and you may win a $20 gift card!

posted at April 22, 2013 9:53 AM EDT
Posts: 5
First: April 4, 2013
Last: April 29, 2013
Square B is darker.

Re: Play 'Adelson's Illusion' and you may win a $20 gift card!

posted at April 22, 2013 10:01 AM EDT
Posts: 334
First: January 24, 2008
Last: May 1, 2013
Thanks for playing rkasnick!

In Response to Re: Play 'Adelson's Illusion' and you may win a $20 gift card!:
Square B is darker.
Posted by rkasnick

Re: Play 'Adelson's Illusion' and you may win a $20 gift card!

posted at April 22, 2013 11:48 AM EDT
Posts: 1
First: April 22, 2013
Last: April 22, 2013
Square B is darker.

Re: Play 'Adelson's Illusion' and you may win a $20 gift card!

posted at April 22, 2013 11:58 AM EDT
Posts: 334
First: January 24, 2008
Last: May 1, 2013
Thanks for playing IMNETNET!

In Response to Re: Play 'Adelson's Illusion' and you may win a $20 gift card!:
Square B is darker.
Posted by IMNETNET

Re: Play 'Adelson's Illusion' and you may win a $20 gift card!

posted at April 22, 2013 12:15 PM EDT
Posts: 2
First: April 22, 2013
Last: April 22, 2013
B is darker

Re: Play 'Adelson's Illusion' and you may win a $20 gift card!

posted at April 22, 2013 12:27 PM EDT
Posts: 1
First: April 22, 2013
Last: April 22, 2013
Square A is darker The shadow doesn't seem to be enough to make B darker than A.

Re: Play 'Adelson's Illusion' and you may win a $20 gift card!

posted at April 22, 2013 12:29 PM EDT
Posts: 334
First: January 24, 2008
Last: May 1, 2013
Thanks for playing ardiamonds!

In Response to Re: Play 'Adelson's Illusion' and you may win a $20 gift card!:
B is darker
Posted by ardiamonds

Re: Play 'Adelson's Illusion' and you may win a $20 gift card!

posted at April 22, 2013 12:30 PM EDT
Posts: 334
First: January 24, 2008
Last: May 1, 2013
Thanks for playing, marb321!
In Response to Re: Play 'Adelson's Illusion' and you may win a $20 gift card!:
Square A is darker The shadow doesn't seem to be enough to make B darker than A.
Posted by marb321

Re: Play 'Adelson's Illusion' and you may win a $20 gift card!

posted at April 22, 2013 1:18 PM EDT
Posts: 1
First: April 22, 2013
Last: April 22, 2013
Gray square A color is darker.  The shadow over white square B gives an illusion of being darker, but the square is still white.
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Forums » Games » Games » Play 'Adelson's Illusion' and you may win a $20 gift card!