Excerpt: ...diagram annexed (Fig. 23). Here every condition of route exactly corresponds to that in the circular maze, only it is much less confusing to the eye. Now, the number of routes, under the conditions, from A to B on this simplified diagram is 640, and that is the required answer to the maze puzzle. FIG. 23.
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The life of Henry Ernest Dudeney is certainly one of the more interesting. Coming from a line that includes a shepherd that taught himself the elements of both astronomy and mathematics, it became clear that Henry was destined for great things. By the time he turned 9, he began to publish the puzzles and problems that he was creating in his local newspaper. This is very impressive for a young man that never attended college or got anything more than a basic education. In 1893, he began to work with Sam Loyd on creating the mathematical puzzles that he remains famous for today. Of course, some of the more interesting puzzles that were created were done by Dudeney, but Loyd took full credit for them and published these items under his own name. Up until his death, Dudeney continued to create a series of puzzles that caught the attention of the world. After his death, his wife gathered a collection of these puzzles and released the book, Puzzles and Curious Problems in 1931.
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