Noun: sudoku su'dó-koo or su'dow-koo
- Number puzzle in which numbers must be fit into a 9x9 grid such that each numeral appears exactly once in each row, column and each of nine 3x3 blocks
"She relaxed by solving a sudoku puzzle every evening"
Derived forms: sudokus
Type of: mystifier, puzzle, puzzler, riddler, teaser
Encyclopedia: Sudoku