RU-ALLRUSSIAN 2023 Problem 115
- Grade 11
Initially, ones are written on a blackboard. Grisha and Gleb are playing game, by taking turns; Grisha goes first. On one move Grisha squares some numbers on the board. On his move, Gleb picks a few (perhaps none) numbers on the board and increases each of them by . If in moves on the board a number divisible by appears, Gleb wins, otherwise Grisha wins. Which of the players has a winning strategy?
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.