Here are 121 alphabet sudoku puzzles for smart young word lovers. Also called wordoku, solving these puzzles requires the same kind of logic as sudoku puzzles, but they use letters instead of numbers. To make things more interesting, the name of a critter is hidden in each puzzle - that is, a row or column in each puzzle spells the name of an animal. The puzzles progress from the easy 4 X 4's to the more challenging 6 X 6's, with a few cranium-crushing 8 x 8's and 9 X 9's included towards the end of the book. Each puzzle has only one unique solution. Instructions on how to solve the puzzles, along with answers at the back of the book, are included.