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Noun: sudoku  su'dó-koo or su'dow-koo
  1. 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

Type of: mystifier, puzzle, puzzler, riddler, teaser

Encyclopedia: Sudoku

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sudation
sudatorium
sudatory
Sudbury
sudd
sudden
sudden death
sudden infant death syndrome
suddenly
suddenness
sudoku
sudor
sudoriferous
sudoriferous gland
sudorific
sudra
Sudra
suds
sudser
sudsy
sue