Really Difficult Puzzle

December 6, 2007 by Pablo | Email This Post

This time, I bring you a nearly-impossible puzzle. The rules are simple, but the puzzle isn't. Below is a very special grid, around each shaded number are 8 white squares. However, each white square should have a number from 1 to 7. Once filled in, these 8 numbers will sum to the shaded number. In addition, once completed correctly, no row nor column will contain a duplicate number within a white square. For example, the top row may be 5 6 4 2 3 1 7, etc. This is solvable without the aid of a computer. You should team up with some of your friends, like they say, two heads are better than one! Anyways, here it is:


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