RU-ALLRUSSIAN 1989 Problem 8
Show that the 120 five digit numbers which are permutations of 12345 can be divided into two sets with each set having the same sum of squares.
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.