I have put a snapshot. The ChangeLog:
- Added the constraints teacher(s)/students (set) max two activity tags from N1, N2, N3, N4/N1, N2, N3, N4, N5 per day/real day (suggested by Thai Chi Phuong and Vũ Ngọc Thành).
- Added the constraint teacher(s) no two consecutive days (suggested by Khelifi Fouad Mohssen).
Please test these new features, but also the old features with N1, N2, N3 -> your old file should solve identically if you start with the same random seed (you can compare the final random seed to check), comparing the stable current FET-6.24.1 and this snapshot of FET-6.24.2-snapshot. I changed a bit the N1N2N3 code.
The download link, as usual: https://lalescu.ro/liviu/fet/download/test/