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sudokuOne entry found. Main Entry: su·do·ku Pronunciation: \sü-ˈdō-kü\ Function: noun Etymology: Japanese sūdoku, short for sūji wa dokushin ni kagiru "the numerals must remain single" (i.e., the digits can occur only once) Date: 2004 : a puzzle in which several numbers are to be filled into a 9x9 grid of squares so that every row, every column, and every 3x3 box contains the numbers 1 through 9
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