ISL 1994 C1
Two players play alternately on a board. The first player always enters a into an empty square and the second player always enters a into an empty square. When the board is full, the sum of the numbers in each of the nine squares is calculated and the first player's score is the largest such sum. What is the largest score the first player can make, regardless of the responses of the second player?
Dataset text AI-MO AoPS. Quoted with source.
Solutions
No solution is on olymmath yet. Official and human solutions come first when they arrive. AI solutions come after them, with a label.
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