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These problems are mostly math-related. That's not to say that they're all straightforward. You'll still need to flex your noggin to figure them out!
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Difficulty: 2 of 5 Latest: Counting magic squares Rating: 2.00
How many magic squares are there using each the numbers 1 to 9 exactly once?

Show all of them and explain why your set is final.

(No Solution Yet, 2 Comments) Submitted on 2018-06-30 by Ady TZIDON   
Page 5 of 120   << prev next >>    
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