Never by Color!

The Japanese room has drowned in a mountain of colorful parts. Bring back its calm! Scoop up a handful of parts onto your tray and sort them into boxes. There's one rule, and it's ironclad: sort by SHAPE — never by color! Cubes with cubes, plates with plates, and let the red trap box stay empty. No timers, no losing. Just you, a mountain of parts, and the pursuit of perfect order. The most meditative tidying of your life.