Definition of sudoku
: a puzzle in which missing numbers are to be filled into a 9 by 9 grid of squares which are subdivided into 3 by 3 boxes so that every row, every column, and every box contains the numbers 1 through 9
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When retested after the prizes were frozen, Varshavsky — who in 2006 had also come under suspicion of cheating at a chess championship — could not solve a sudoku.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'sudoku'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of sudoku
Japanese sūdoku, short for sūji wa dokushin ni kagiru "the numerals must remain single" (i.e., the digits can occur only once)
First Known Use: 2000
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