su|do|ku

su|do|ku «soo DO koo» noun.

a logic puzzle game, worked on a grid—often of 9 squares across and 9 down. To solve such a puzzle, the numbers 1-9 can be used only once in each row, column, and 3-by-3-square block.

╂[< Japanese suudoku < suu(ji wa) + doku(shin ni kagiru) numbers must be unmarried, single]