If you can count to nine, you can solve the popular Sudoku number puzzles that are fun and easy to learn and build your deductive reasoning skills. To play Sudoku, you start with a 9x9 grid partially filled in with numbers. When you've finished the puzzle, each row, column, and 3x3 section will have every digit 1-9. Your job is to properly fill in the grid. Pick a row, column or 3x3 section, determine which digits are missing, and figure out where they go. Earn a point for every correctly filled in space, and lose a point for each incorrect answer. Get a hint from the cat if you need one, and choose a more difficult level when you're ready.