Everyday new Wordoku levels. A wordoku is a sudoku with letters. Every letter only appears once per row, column or 3x3 box. Everyday new Wordoku levels. A wordoku is a sudoku with letters. Every letter only appears once per row, column or 3x3 box. Everyday new Wordoku levels. A wordoku is a sudoku with letters. Every letter only appears once per row, column or 3x3 box. Everyday new Wordoku levels. A wordoku is a sudoku with letters. Every letter only appears once per row, column or 3x3 box. Everyday new Wordoku levels. A wordoku is a sudoku with letters. Every letter only appears once per row, column or 3x3 box.