RU-ALLRUSSIAN 2003 Problem 116
Is it possible to write a positive integer in every cell of an infinite chessboard, in such a manner that, for all positive integers , the sum of numbers in every rectangle is divisible by ?
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.
Similar problems
These problems have the most words in common with this statement.