League Optimizers 2021

Gerhard wrote:I also want to take part in the exciting final battle of this beautiful competition.
Unfortunately, I found the promising construction very late.
Now there is no time for a very neat solution.
Thank you again for the interesting puzzle!

Vladimir wrote:Thanks again for very interesting August puzzle!
 
A serious struggle broke out at the end of the decision term. This indicates a good overall assessment of this problem by the solvers!