Hexadoku february 2006
Puzzle with an electronic touch

The instructions for the puzzle are straightforward. In the diagram composed of 16_16 boxes, enter numbers in such a way that all hexadecimal numbers 0 through F (that’s 0-9 and A-F) occur once in every row, once in every column, and in every one of the 4_4 boxes (marked by the thicker black lines). A number of clues are given in the puzzle and these determine the start situation.
Your solution may win a prize and requires only the numbers in the grey boxes to be sent to us (see below). The puzzle is also available as a free download from our website (Magazine ? 2006 ? March).
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