Sudoku gridmaster brings the most challenging elements of the hit puzzle game to your ds! This number-based puzzle game has taken the nation by storm -- walk into any airport or train station and youre likely to see someone with a sudoku book. Now you can challenge yoursefl to solve this collection of number puzzles. See if you can become a real sudoku master! Earn stars to unlock new rewards and challenges.Features . For 1 player . Popular game with 400+ puzzles selected by original creators of sudoku . Systems touch screen makes choosing or writing numbers easy .4 Difficulty settings include practice, easy, normal, and hard . Complete puzzles quickly to open up even more puzzles