23
Gnomish wall
Post Body
So my brother riddled me this at Easter, it took me about 25 minutes to figure it out. There are 4 gnomes facing a brick wall as such: G: Gnome |: brick wall G|GGG Two of the gnomes are wearing black hats, and two of the gnomes are wearing white hats. A gnome is not able to see what color his own hat is, only the colors of the gnomes in front of him, if there are any. A gnome cannot speak unless he is absolutely certain, beyond a shadow of a doubt what color his hat is. The puzzle is this: Which gnome will always know what color hat he is wearing and why?
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- 11 years ago
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