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BrainTwister #22: Even rows

Can you solve this week’s logic puzzle? Plus our quick quiz and the answer to last week’s problem

By Peter Rowlett

29 May 2024

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#22 Even rows

Set by Peter Rowlett

Fill in the numbers 1-16 once each in a four-by-four grid so that the sum of the numbers on the top row is even and the numbers on the bottom row sum to a different even number.

For example, if we arrange the square so that the numbers across the top row are 1, 2, 3 and 4, they will sum to an even number, 10.

Can you find a solution where all four edges have different sums that are all even?

Can you find a solution where all rows, columns and diagonals…

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