76. Nine Nines Puzzle This array of 9 nines contains 8 straight lines, each totaling 27 (3 across, 3 down, 2 diagonal). Show how to move 4 nines to new positions to make 10 straight lines, each totaling 27. Added 16 February 2011 Show Solution Solution: Move the nines in the following way: Move the first nine from the top row to the bottom row, and move the second nine from the middle row to the top row. This will create additional lines while maintaining the total of 27.
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