Here are 125 all-new JUMBO wordoku puzzles Wordoku is like sudoku with letters instead of numbers in the grid. The twist to these word puzzles is that they're ALL 16 x 16 grids, which means that even the easiest ones are actually pretty hard. You will have 16 letters (instead of 9 numbers) to keep track of while you're working through each puzzle. The 16 letters that are used for every wordoku puzzle appear above the grid as a pronounceable anagram. To spice things up even more, there are four different levels of puzzles - hard, really hard, really really hard, and brain crusher. Hidden inside the solved puzzle is the solution anagram, and a hint for it is given upside-down at the bottom of each grid. Every wordoku has only one solution.