Here is a cube puzzle for you to solve. Cheatsheet is in the assembly guide documentation, figure the order of which number to place on your own. 

I uploaded 2 profiles. 

1 is with numbers and colors on the puzzle pieces and the puzzle difficulty is medium. You can make it yourself a bit harder if you print this profile in 1 color. 

2nd profile is no color and no number indicators and difficulty is hard. Good luck. This cube is also a bit smaller to fit it all on 1 plate. You can ofcourse use ctrl A and then scale the pieces all together just make sure to use uniform scaling.

If you scale the model be sure to choose uniform scaling and also adjust the Z height accordingly. Otherwise pieces will not fit.