Habaritag:blakerobertjohnson.com,2017-03-29:the-prisoners-hats/16eac3ab073f273ac2e0914e4e5ab0d1148567bbblake johnsonThoughts on People, Politics, Science, Technology, Movies, Music, and More.2013-02-16T18:27:48-05:00Martey on "The Prisoner's Hats"Marteyhttp://www.marteydodoo.comhttp://www.blakerobertjohnson.com/2006/03/the-prisoners-hats//162006-03-25T01:13:33-05:00I would answer, but I heard this riddle during an interview about a month ago. As a result, I will not say anything.Phyllis on "The Prisoner's Hats"Phyllishttp://www.blakerobertjohnson.com/2006/03/the-prisoners-hats//172006-03-27T11:36:22-05:00Blake, I think you have stumped the internet. What's the answer?Blake on "The Prisoner's Hats"Blakehttp://http://www.blakerobertjohnson.com/2006/03/the-prisoners-hats//182006-04-03T12:04:58-04:00THE SOLUTION:
Since there are 4 hats and 2 of each color, at least two hats to the left of the wall are the same color. If the two prisoners closest to the wall on the left have the same color hat, the guy in the back knows that his hat is the opposite color, so he can shout out the color of his hat. If the prisoner in the back <em>remains silent</em>, then the middle prisoner knows that the guy in the back does not see two hats of the same color in front of him. Consequently, the middle prisoner knows that his hat is the opposite color of the hat in front of him. So, he can shout out the color of his own hat.DA Carlson on "The Prisoner's Hats"DA Carlsonhttp://www.thecomeuppance.comhttp://www.blakerobertjohnson.com/2006/03/the-prisoners-hats//192006-04-05T18:24:01-04:00That was very difficult. I was wracking my brain for a week trying to figure it out. It's a good one though.ron on "The Prisoner's Hats"ronhttp://www.myspace.com/ronnie61292http://www.blakerobertjohnson.com/2006/03/the-prisoners-hats//332007-01-26T12:46:57-05:00umm doesent make sense!Blake on "The Prisoner's Hats"Blakehttp://http://www.blakerobertjohnson.com/2006/03/the-prisoners-hats//342007-01-29T01:38:58-05:00@Ron: what doesn't make sense? The riddle or the solution?Edwin Cho on "The Prisoner's Hats"Edwin Chohttp://www.blakerobertjohnson.com/2006/03/the-prisoners-hats//372007-03-26T08:52:36-04:00Can you shoutBlake on "The Prisoner's Hats"Blakehttp://http://www.blakerobertjohnson.com/2006/03/the-prisoners-hats//382007-03-27T12:51:31-04:00@Edwin: if a prisoner shouts something other than the color of his own hat, the king kills him.Shoe on "The Prisoner's Hats"Shoehttp://www.blakerobertjohnson.com/2006/03/the-prisoners-hats//452007-07-12T14:14:15-04:00This is impossible.... =(ANON on "The Prisoner's Hats"ANONhttp://www.blakerobertjohnson.com/2006/03/the-prisoners-hats//492007-10-27T11:47:36-04:00This is pretty simple. Just set up a chart and don't worry about who is behind the wall. The only combinations are
<b>BWW</b>-Option 1The back prisoner see's two whites and guesses black since there are only four hats, 2 of each color.
<b>WBW</b>-Option 2The first prisoner remains silent. Because he is silent the second prisoner knows his hat can not be the same as the one in front of him. If he was the same as the prisoner in front of him, the first prisoner could have easily guessed as in option 1. Since he know's he is not the same hat color as the prisoner in front of him, he guesses the opposite of his color
<b>WWB-same as option 2
WBB-same as option 1
BWB-same as option 2
BBW-same as option 2</b>caitlyn on "The Prisoner's Hats"caitlynhttp://www.blakerobertjohnson.com/2006/03/the-prisoners-hats//26882009-07-07T23:17:03-04:00wow that is hard nice oneben on "The Prisoner's Hats"benhttp://www.blakerobertjohnson.com/2006/03/the-prisoners-hats//27032009-07-15T16:00:41-04:00AAgh! so simple but so annoying! Thanks for the infuirating answer.brandon on "The Prisoner's Hats"brandonhttp://www.blakerobertjohnson.com/2006/03/the-prisoners-hats//38102010-05-28T21:07:26-04:00its pretty comfusing-- make more thoughDaya on "The Prisoner's Hats"Dayahttp://www.blakerobertjohnson.com/2006/03/the-prisoners-hats//48812011-02-04T06:25:13-05:00Out-of-box thinking..tyla on "The Prisoner's Hats"tylahttp://www.blakerobertjohnson.com/2006/03/the-prisoners-hats//59212011-11-14T14:13:45-05:00none of this is making sense to me at all!! I'm not with it today!
whats the answer to the puzzle? simple words though because i reallllly dont get it! sorry!xmehdi on "The Prisoner's Hats"mehdihttp://www.blakerobertjohnson.com/2006/03/the-prisoners-hats//75522012-03-24T19:43:04-04:00it still doesnt make sense.....even if the middle person can guess the colour of his hat correctly how does the person behind him and in front of him after guess the colours of their hats??? the answer given isnt complete Blake Johnson on "The Prisoner's Hats"Blake Johnsonhttp://www.blakerobertjohnson.com/http://www.blakerobertjohnson.com/2006/03/the-prisoners-hats//75772012-03-25T22:51:57-04:00@mehdi: The setup of the riddle is such that only one prisoner must be able to figure out the color of his hat.
The prisoner in the front can never know the color of his hat, and the prisoner in the back only knows his hat color for particular configurations.Berman on "The Prisoner's Hats"Bermanhttp://www.blakerobertjohnson.com/2006/03/the-prisoners-hats//282552013-02-16T18:27:48-05:00Only problem with your solution is its predicated on the middle prisoner knowing the back prisoner can see the two in front. If that's the case then they can all turn their heads to see everyone then the solution would simple be the prisoner that sees two hats of the same color shouts out.
The riddle explicatly states they can only see directly infront. Thus the middle prisoner has no idea if the man behind him can see him or not.