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Day 02: Triangulation
Description
Today we give away decorations for your Christmas tree. But be careful and do not break it.
Solution
This is a STL file containing a 3D model of a Christmas bauble:
Nothing obvious there, but if we look at the wireframe view we see that there is more inside:
Cutting through the ball in blender we see an aztec code inside. After cleaning up the image, converting to b/w, removing noise, rotating, we can read the code
Flag
HV19{Cr4ck_Th3_B411!}