Within a week of naturally-mathematical cycle in the school-lyceum  №20 was held the intellectual competition "Scholars of knowledge" among students of 9th -10th classes.  The competition consisted of four rounds : "Warmup", "Try to guess", "Error inequalities", "Who is smart?". Students of two classes have shown their knowledge in solving logic situations, ingenuity, mathematical definitions.  The competition was interestingfor students. The victory was won by the team of 10 B class.