Sudoku is a recently popular number puzzle game from Japan. You need to fill the grid with numbers in such a way that all rows, columns and 3x3 squares have all digits (1-9). This Sudoku softbook offers you about 50,000 puzzles in 12 books. You can play 3 different sudoku games, Regular sudoku, Killer sudoku and Greater than sudoku.

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Sudoku Soft-Book , Sudoku , Killer , comparison , futoshiki , number places , math , puzzle , logic , book , software , generate , play , japanese |