So far I have not really seen blogs speaking about these nice puzzles called the smart eggs. There all in plastic consisting of an egg with an internal maze and a stick. The goal is to put the stick in the hole on the top of the egg and free it from the bottom hole of the egg...no pun or dirty meanings intended! :-)
There are several eggs in the series with an increasing difficulty. I advise to start with the easiest so that you can see how you have to play with it and how the moves are done. Basically you put the stick on one hole and usually you have to slide the stick to reach another hole and so on until you solve completely the puzzle.
Of course for the easiest eggs the internal maze is easy but when you reach a certain level of difficulty you will realize that the internal maze is more complicated and there are more holes as well. For some eggs there are not a lot of hole but it is because you will have to move the stick several time inside the egg to finally reach a hole.
Process of solving below
I don't have the specific material to make a video so I will just put some youtube links I found. It shows the solving process for some easiest eggs, so spoilers included! It allows you to better understand (if my explanation was not clear lol) how to play with them.
HERE and HERE
To be honest I did not have difficulties to solve these eggs. It just took me a bit more time for the most advanced eggs and also for one egg that the internal maze was not cut super super "clean". I mean I needed to use a sligh amount of force. Still all the maze are very nicely made. I did not have any issues when playing with them and I did not break any sticks nor any eggs!!
So far I have spoken about the "static" eggs. But there are also 3 bigger eggs, which are also the most difficult in the whole series, that involve a movable core. This makes the eggs even more difficult to solve because you have to take into consideration more parameters to solve them.
The thing that I like is that for these 3 eggs, the stick is in metal, it's clever because maybe with plastic stick they could break if you move the core a bit too hard....
I still need to solve these 3 beast!
In my mind, the series of smarteggs are in the same spirit of the hanayama puzzles: they are collectible and fun.
I like them a lof and I let friends play with them and they had great time. So very suitable for puzzlers and non-puzzlers! I like the way they look and I keep them in their original packing to display them. I don't really see the goal of the base provided with each puzzle because you're not going to play with the base (they are not magnetic) and I am not sure you will display the eggs on their base and you would prefer displaying them in their packaging.
You can find these eggs HERE