Oh well, from the announcement of the challenge (for the crown of honour) to the closing of the same (i.e. when the solution tapes have been uploaded) passed just one day... it's not so good...
From the release of the levels to the tapes it took 1 1/2 months ... I didn't thought there was anyone still interested in playing these levels ...
...the problem is that I didn't knew that they were intended to be played in team mode!
Maybe now you can imagine, why the topic says "10 small
multiplayer levels" and why I underlined it in the release post ...

And again I wished it would be possible to define the minimum and maximum number of players in the level config screen, Holger ...
Now it should be clear that I've solved level 4 in single player mode ...
Uuh, that's brave to try to solve multiplayer levels in single player mode and a great performance to be indeed successful!
But if you really want to play these levels alone, I suggest to use the local team-mode and define additional input keys for the second player, e.g. the numpad. Then you should be able to play most of these levels alone, I even solved level 002 alone.

But in level 007 the time limit is hard for one player and level 009 should be impossible for non-chameleons!
But when I talked about the crown of honour I thought especially about level 010. I like the idea to build your own level inside a level with the content of Yamyams, but I wondered if it's possible for outsiders to find the right sequence ...