So far, there is no reaction from the blogger community to the problem of the RUMIS cube assembly. 

That is understandable – it's been solved, and the game RUMIS was published in Germany. The cube assembly from the game stones is a side issue that has no connection with the game itself. And the cube assembly is known by various other names by puzzlers and in mathematical recreation circles.

For me it was fun to discover and solve the problem. i.e., showing that the last cube combination cannot be assembled from the stones provided.

Off to other little things!