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 Goal: Add the 3 numbers on each line, and all the sums of the lines must be equal.
 
 Hint: The magic sum is the hint. Divide the magic sum by 3 and you will get the value (number) that must be in the center in order to complete the puzzle.
 
 Directions
 
 
    To start a new game, click on the New Puzzle button. Click on a bubble on the outside to swap the number positions.  A solid bubble means a valid number placement on the line.    |  |  |  |