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100 Easy 4x4 Sudoku Puzzles for Kids: Mini Sudoku Puzzle for Children / Ages 4-6 / Large Print / Handy Size (Large Print / Paperback)

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Sudoku Puzzles. How to do a 4x4 Sudoku Grid (easiest) Every column, row and mini-grid must contains the numbers 1, 2, 3 and 4. Can you work. - ppt download