Here's where you can find sudoku on your iPhone and what to know about the game. 1. Open News. 2. Tap Following across the ...

Gamers who play online Sudoku for free can keep their brain active and sharp, without having to spend a dime. Get exclusive hints, take notes, alter entered digits, stop the timer, and more.

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Microsoft has released a new and free Sudoku game for Windows 8.1 titled, without a lot of imagination, Microsoft Sudoku, offering gamers a chance to play a new version of the classic numbers ...

The Rules This one is a bit self-explanatory—it's like Sudoku but bigger. Instead of the standard 3x3 squares inside a 3x3 grid, Mega Sudoku blows things up to 4x3 square inside a 3x4 grid.

Sudoku is like any other logic puzzle, in that it relies on deductive reasoning for its solution. There are numbers in the game, but no arithmetic is required to figure out where they go.