Pre-Owned Sudoku Gridmaster - Nintendo DS

In airports and train stations all across the country, you'll see people solving Sudoku puzzles in books, magazines and newspapers. People love the challenge of the puzzles, which are easy to learn but hard to master. Now Nintendo brings you a new twist on the game that gives you even more brain-teasing enjoyment.

Touch-screen controls let you touch the square you want to fill in or highlight whole rows, columns or instances of a single number. Puzzles are grouped by four levels of difficulty and good performances are rewarded with stars. Once you gain enough stars, you can take a test to win a special award and unlock even more puzzles.