Change a letter to make a new word... make a change again to make a chain!
The rules of the Puzzle are simple enough. Two words are proposed, of the same length; and the Puzzle consists in linking these together by interposing other words, each of which shall differ from the next word in one letter only. That is to say, one letter may be changed in one of the given words, then one letter in the word so obtained, and so on, till we arrive at the other given word. The letters must not be interchanged among themselves, but each must keep to its own place. As an example, the word "CAT" may be changed into "DOG" by interposing the words:
CAT–COT–DOT–DOG
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