Cubes

How to play

A 25-cell grid: some cells hold a tower of 1 to 3 stacked cubes. The grid stays visible at all times, even once the cubes are gone. In Mixed mode, grey and red can mix within the same tower, and the asked color (grey or red) changes every round — there's no way to know which one in advance. In All cubes mode, count them all. Enter the number before the response time runs out.