Shouldn't be too hard While exploring the unknown, three scientists get caught by a group of criminals. A game is played to give the scientists an opportunity to go free. In the game, the scientists are tied in a row so that one scientist can see the backs of the other two in front of him, the scientist in the middle can only see the back of the one scientist in front of him, and the one in the very front cannot see any of the others. They are shown five colored feathers, among which there are three white feathers and two black ones. They are blindfolded and each of them is given a feather from the group of five to put in the back of his hair. Then the blindfolds are taken off, and they are asked to call out the color of their own feather as soon as they can tell what it is, without discussing it with the others first. If even one of them can guess the correct color of his feather, all three of them will be released. A little time passes and none of them speaks...then the man bound to the very first stake (who actually can't see anybody) correctly names the color of his own feather. What thoughts lead to his conclusion?
