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Fun Birthday Card - Sudoku Puzzle - Reveal A Top Secret Message created by Curiosity Unboxed
Fun Birthday Card - Sudoku Puzzle - Reveal A Top Secret Message created by Curiosity Unboxed
Fun Birthday Card - Sudoku Puzzle - Reveal A Top Secret Message created by Curiosity Unboxed
Fun Birthday Card - Sudoku Puzzle - Reveal A Top Secret Message created by Curiosity Unboxed
Fun Birthday Card - Sudoku Puzzle - Reveal A Top Secret Message created by Curiosity Unboxed
Fun Birthday Card - Sudoku Puzzle - Reveal A Top Secret Message created by Curiosity Unboxed
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Curiosity Unboxed

Fun Birthday Card - Sudoku Puzzle - Reveal A Top Secret Message

Send your puzzle-loving friend this unique birthday card! Watch them solve the sudoku on the front of the card to reveal a secret 'Happy Birthday' message revealed in the shaded squares.

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