Add Hard Constraint

All 40 weekly period slots per section must be filled — there must be no free periods for any class
Grade 4 and Grade 5 Science classes must be in the Science Lab
ICT classes must be held in the Computer Lab
Music classes must be held in the Music Room
PE classes must be held in the Sports Hall
Art classes must be held in the Art Room
Every section (1A, 1B, 2A … 5B) must have exactly 8 periods scheduled every day, Monday to Friday
Each class section must receive its full allocation of weekly periods — no empty slots allowed
A teacher cannot exceed their maximum periods per day
Teachers can only be scheduled on their available days and periods
No room can be used by two classes at the same time
No teacher can be assigned to two classes at the same time

Add Soft Constraint

Spread Arabic periods across the week — no more than 1 per day per section
Parallel sections (A and B) of the same grade should not have the same specialist room at the same time
Science for Grades 1-3 should stay in the homeroom — no lab required
Each section should have at least one English and one Math period every day
Islamic Studies should be scheduled in the first or second period
Try not to schedule PE as the first period of the day for junior grades (1-2)
Minimise room changes for the same section throughout the day
Avoid giving a teacher more than 3 consecutive periods without a break
Art, Music, and PE should be in afternoon periods (5-8) when possible
Schedule English and Math in morning periods (1-4) when possible
Avoid scheduling the same subject in consecutive periods for a section
Distribute teacher workload evenly across the week