Sudoku is a fantastic game of skill. Puzzles Sudoku is a number placement game in which the player must use logic reasoning to complete a puzzle. Players have access to play sudoku online, enjoy free sudoku and subscription sudoku puzzles. Everyone can play sudoku, but it's addictive, you've been warned! The word "SUDOKU" is often incorrectly spelled as suduku, suduko, sudoko, soduku, soduko, sodoku, sodoko, sidoku, sedoku, sidoko, sudoki, sidokou, sudokou,sudokew, seedoku, suudoku, sewdoku, sewdokus.