My desk calendar this year is a page-a-day Tangram. It gives a shape every day into which one must fit the seven 'tans' as they are called, exactly into the given shape.
It's been fun and, occasionally, a challenge.
I had another SPC contribution ready for this final week when it occurred to me today that the tans can be formed into a square and, furthermore, one of the tans is, in actual fact, a square.
So,
...and since I mentioned it and it was ready, anyway, here's an alternate:
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