English version


From Longman Dictionary of Contemporary Englishsudokusu‧do‧ku /suːˈdəʊkuː $ -ˈdoʊ-/ noun [countable, uncountable]  a game in which you have to write numbers in a large square which is made up of 81 smaller squares. Each line of squares across and down, and each of the nine groups of nine squares, must contain the numbers 1 to 9 once only.
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