The cannibals gave them a possible chance to escape.
A, B and C are lined up in order, so that A can see B and C, and B can see C only, while C cannot see anyone.
A -> B -> C
The cannibals take out 5 hats, of which 3 were black and 2 were white, and show these to them.
The hats were then placed on each of their head (one hat per head), without them knowing what color of their own hat is. They would be allowed to escape if at least one of them can guess the color of their hats and they are allowed only one guess.
A looks at the hats of the people in front of him and says "I do not know".
B looks at the hats of the people in front of him and says "I do not know".
Will C be able to save the explorers from the island?
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