Example: tourism industry
Sudoku Puzzles Hard
Found 4 free book(s)Hard Sudoku Puzzles 1 - Printable Sudoku
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Hard Sudoku Puzzles 6 - Printable Sudoku
www.printablesudoku99.comHard Sudoku Puzzles 6 www.printablesudoku99.com Sudoku Puzzle 1 Solution Sudoku Puzzle 2 Solution 2 3 5 4 9 6 8 7 1 3 1 6 9 7 4 5 2 8
Sudoku #1
www.samuraisudoku.orgHard Samurai Sudoku puzzles by SamuraiSudoku.org,Book 1 Sudoku #3 5 7 6 3 8 2 9 6 6 3 2 4 7 3 6 9 5 8 6 9 4 1 6 9 3 5 4 3 7 4 5 8 2 4 7 7 1 1 8 4 5 9 7 3
Sudoku Puzzles: Easy - MathSphere Maths Worksheets
www.mathsphere.co.ukSudoku Puzzles: Easy The modern version of Sudoku was invented in 1979 by Howard Garns in USA (where it was called `Number Place'). It became really popular in Japan in the