The name of the game is Sudoku, Japanese for "number place," but no knowledge of Japanese language or arithmetic is required to enjoy the game that has sparked a mania around the world. It s a fever that is now spreading to the United States, as readers of the New York Post and Los Angeles Times can readily attest.

Veterans of other highly-addictive logic games such as Rubik s cube, Tetris, or Minesweeper will love the fresh challenge of Sudoku. It s a wordless logic crossword that leaves even the most dedicated puzzle enthusiasts scratching their heads. Here in one...