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6
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1
Sudoku became a global phenomenon in 2004 after The Times of London started publishing it daily.
Sudoku became a global phenomenon in 2004 after The Times of London started publishing it daily.
There are Sudoku apps that generate over 1 billion distinct puzzles — you could solve a new one every day for 2.7 million years.
There are Sudoku apps that generate over 1 billion distinct puzzles — you could solve a new one every day for 2.7 million years.