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## Monday, January 14, 2008

### 1 to 12 in a Cross

Write the numbers 1 through 12 in the squares below so that the two columns, the two rows, and the five squares that can be formed with four numbers in each have a total sum of 26.

Can you find the solution where no two consecutive numbers are next to each other horizontally, vertically, or diagonally?

Math Genius 900 said...
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Math Genius 900 said...

wow. first off, i want to say this was a very hard question. BUT! i spent about 3 hours on it using advanced computer software. It turns out, there are 940 different solutions. I did find an interesting solution where no two consecutive numbers are next to each other horizontally, vertically, or diagonally. and here it is
_ 1 6 _
3 8 11 4
10 5 2 9
_ 12 7 _
Follow the numbers starting from 1 to 12, do you notice the pattern?

Anonymous said...

^ You may be a maths genius, but for that you used computer software.

HA