The first round is written in March. The junior division consists of separate papers for grades 8 and 9 and the senior division of one paper for grades 10 to 12. Each paper consists of 20 questions with multiple-choice answers and learners have one hour to complete the paper. Each school is provided with the solutions. For this round, the teachers mark the papers. Learners who attain 50% or higher in the first round qualify for the second round which is written in May. There are separate papers for the juniors and seniors. This time the grade 8 and 9 learners write the same paper. Learners have two hours to complete twenty five questions.
The best 100 senior and junior learners from the previous round qualify for the third round which is written at centralised venues in July.