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
for positive real numbers. The minimum value was found to be 3. Comentarii JBMO 2015
Participants had to find prime numbers and an integer satisfying the equation A game-theory problem on a board involving L-shapes
A significant majority (24 out of 28) of gold and silver medalists achieved a perfect score on Problem 1, confirming its low difficulty. confirming its low difficulty.