RU-ALLRUSSIAN 1972 Problem 13
Is it possible to place the digits 0, 1, 2 into unit squares of 100 x 100 cross- lined paper such that every 3 x 4 (and every 4 x 3) rectangle contains three 0s, four 1s and five 2s?
Dataset text NuminaMath olympiads. 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.