عرض الجدول بزمن أفقي

[Benahmed Abdelkrim]

But it is best to leave your initial file, so that people know your method.

Yes absolutely we must leave the original file, as an example of a hard file but which has a solution despite everything.

These modifications are in order to know the causes of the impasse...

[Benahmed Abdelkrim]

It seems impossible - see the attached screenshots.

You did a very interesting job! 

After several hours I had to give up.  I think you're right;  this file is impossible without easing some constraints (or maybe we should see something else, I don't know!). 

A mystery !