9 numbers, 81 squares, and billions of different possible challenges. That's Sudoku in a nutshell, and it's a game that's taken newspapers, bookstores, and even game systems by storm. It's hard to ...

GameSpot may get a commission from retail offers. LOS ANGELES--If you're familiar with sudoku, then you know that all it takes to be enthralled by a challenging puzzle is a grid and some rows of ...

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Sudoku, the little number-grid puzzle that just won't quit, has been making inroads into the world of handheld video games for a bit now, and already a firm trend has been established. Most of these ...