a puzzle printed on a square grid of nine large squares each subdivided into nine smaller squares, the object of which is to fill in each of the 81 squares so that each column, row, and large square contains every number from 1 to 9.
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Where videogames have an edge on Sudoku is in their ability to adjust to the skill of the player.
There are sections for games (crosswords and Sudoku) and, naturally, gossip.
Oh sure, the kids are just using it to gossip and play Sudoku.