I wanted a difficult puzzle and came across this one first, I know there is another design however I went with this one.
The original was a work in progress however I have fixed the parts and might as well upload it for all of you guys.
You need to print: (using the original files as well)
Box_ends X 2
Pillars X 4
Bright_red_Sword_Stand X 1
thing1_Light_Blue_And_Yellow X 2
thing2_Pink X 1
I have included in the solutions from the creators, it did not help me much. So I added in these solutions to put the box together after printing it so it can be attempted, These were not made by me but by Cantalicio (https://www.thingiverse.com/thing:2871173/comments) and I take no credit for them or the design of the puzzle in that fact.
Warning: edges can be sharp and tolerance are slightly tight. On the pieces I remade, I added in more tolerance however post processing may need to be added to ensure everything fits.
I have made this and have it together and am trying to solve it and failing. But it is an awesome looking puzzle, hard and very cleverly made.
So GOOD LUCK!
Mixed (generic) PLA
Orientate the pieces better to use minimal supports.