NOTE: This begins a series of normal difficulty 5x5 puzzles which are excellent as a daily puzzle that is challenging but not too difficult or time consuming.
This
is a normal difficulty 5x5 puzzle from the free Mathdoku App that you can download and use on your phone or tablet. This free app provides endless different puzzles of all sizes and levels of difficulty and has many interesting features.
The Washington Post provides a version you can do online through your browser:
And here is
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