9 boxes you take 1 to 9 numbers you any number put in any boxes but i add in all sides cross stright left right this like but answer is 15
answer :
the centre number in all the boxes is 5
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In a 3x3 grid, I'd have to put numbers from 1 to 9 in a manner so that respective row, column and diagonal add up to 15.
I have only been able to come up with one solution:
6 1 8
7 5 3
2 9 4
Through some calculations and trial and error method.
Is there any strategy or way of approach to this problem, or is trial and error method the solution to it?
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