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Originally puzzles were not for recreation, but serious questions you might be killed if you couldn't solve them. But in modern times, puzzles had become a sort of recreation, decreasing the seriousness and religiousness gradually. Now, the 'rule creators' of puzzles began to attract notice. I, as a rule creator, published a book, Kyoto University Student,… (More)
Puzzles have long history and have been developed by many people. Nowadays computers are contributing very much to the evolution of puzzles. First computers were used to make arithmetical puzzles, like earithmetical restoration' or ecrypt-arithmetic,' then to make mechanical puzzles, like eburr puzzles' or epolyomino puzzles' and to… (More)