Barrapunto

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History

Originally called simply Number Place, the first puzzle was created by Howard Garnes, a freelance puzzle constructor, in 1979. The puzzle was first published in New York in the late 1970s by the specialist puzzle publisher Dell Magazines in its magazine Dell Pencil Puzzles and Word Games, under the title Number Place. The puzzle was introduced in Japan by Nikoli in the paper Monthly Nikolist in April 1984 as "Sūji wa dokushin ni kagiru (数字は独身に& #38480;る)", which can be translated as "the numbers must be single" or "the numbers must occur only once" (独身 literally means "single; celibate; unmarried"). The puzzle was named by Kaji Maki (鍜治 真起), the president of Nikoli. At a later date, the name was abbreviated to Sudoku (数独, pronounced sue-do-koo; sū = number, doku = single); ...