A puzzle involving the numbers from 1 to 16 and their arithmetic is a challenging alternative to sudoku and other games.
from Forbes – Tech http://ift.tt/1VLAcD9
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A puzzle involving the numbers from 1 to 16 and their arithmetic is a challenging alternative to sudoku and other games.
from Forbes – Tech http://ift.tt/1VLAcD9
via IFTTT