Comentarii Jbmo | 2015

This problem involved minimizing a specific expression given the constraint

A game-theory problem on a board involving L-shapes. It required determining the minimum number of marked squares needed to ensure a certain outcome. Key Commentary Insights Comentarii JBMO 2015

Participants had to find prime numbers and an integer satisfying the equation This problem involved minimizing a specific expression given

. Commentary suggests this was a very accessible problem, possibly even at a 5th or 6th-grade level, which resulted in a high number of maximum scores. Comentarii JBMO 2015

for positive real numbers. The minimum value was found to be 3.