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How to play:
  1. Fill the grid with the digits provided.
  2. Each row contains exactly one of each digit.
  3. Each column contains exactly one of each digit.
  4. Groups of same color cells, outlined in black, create a unique math puzzle. Digits in those cells will give a specific number result when using the provided math operation: addition (+), subtraction (−), multiplication (×), and division (÷).
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