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Half of 4X4 (Posted on 2014-04-24) |
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*2*5
8*3*
*3*5
5*9*
There were 16 digits in the above 4x4 grid.
Fill in the erased digits.
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Submitted by Ady TZIDON
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Solution:
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(Hide)
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Spread, the full grid is 1235813213455891 i.e. concatenation of the 1st 16 digits of Fibo sequence (1,2,3,5... etc). |
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