From woodwondersonline.com:
Looking quite a bit like the "Y" Pack is this second challenge from Haym Hirsh. The pieces are L shaped tetracubes and the box is very slightly different. Can you find the unique solution that fits all 5 pieces inside the box? I think this one is more difficult to solve then "Y" Pack. Getting the first 4 pieces into the box in a way that would allow the final piece to be inserted is something I couldn't get my head around. Again, I had to ask Haym for the solution in the interest of time. I wish I hadn't, as I would have loved to have discovered the unique solution on my own.
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