The tray contains 9 separate pieces, each of which is made of individual cube blocks glued together to form irregular shaped units. Several blocks come permanently affixed to the tray. Quality of the puzzle is reasonably good; with each of the cube block edges even bevelled. The only minus here is that the bottom of the tray feels like it has not been sanded smooth sufficiently or at all.
Through trial and error, I managed to put the rest of the pieces into position, but then, it still took me a very long while to complete. Let's face it, if all the pieces had been made of the same coloured wood, I seriously doubt I could have solved it. Perhaps that was why the puzzle has been made the way it is...otherwise it would have been too difficult??
The second objective is to use the 9 pieces to form a 4x4x4 cube. This one really got me super-stumped! I spent several days trying all sorts of configurations but got no where. Not wanting to frustrate myself any further, I checked out the solution. Even this was no walk in the park and I knew I would never have been able to solve it without the solution. I also found out that only 8 pieces out of the 9 were required! I think BurrTools might probably do the trick here, but I haven't learnt how to use the software yet!
For those that enjoy packing or 3D assembly puzzles with loads of challenge, I think the One-In-A-Trillion is really excellent for being able to combine two puzzles in one, not to mention that it is very good value for money too, effectively two for the price of one! An added bonus is the different exotic woods used which makes the puzzle aesthetically pleasing and exude quality, especially with the 4x4x4 cube. Definitely worth acquiring.