Yes, of course Sudoku is copywritten. If it wasn't then people could go and steal it. If you don't believe me, you can go to Google and look it up. ( yes, Google is copywritten too!)
bacterium
A word or title is usually not able to be copyrighted. However, it could be Trademarked.
copyrighted
Sudoku is a game that requires players to fill squares with numbers so that every column, row, and large square contains the numbers from 1 to 9 without repetition. The word Sudoku stems from a Japanese phrase that means single digit.
there is no real satistics to a sudoku so unluky the are many ways to do a sudoku
Sudoku is a noun.
Lovers of sudoku can visit the BrainBashers website where they can find daily sudoku games. Billions of free sudoku can also be found on Websudoku. This is unlimited and can be played on all devices such as android or Ipad.
copyrighted
Single words can't be copyrighted. Bundt is a registered trademark of Northland Aluminum.
Sudoku Gridmaster happened in 2006.
Buku Sudoku happened in 2006.
Zen of Sudoku was created in 2006.