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Re: Play 'Adelson's Illusion' and you may win a $20 gift card!
posted at April 24, 2013 1:17 PM EDT
First: April 24, 2013
Last: April 24, 2013
In Response to Play 'Adelson's Illusion' and you may win a $20 gift card!:
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.
Posted by LynneG
Square A is darker