How it works

Get every coloured brick into a shredder. The grey ones are junk: they shove around, but no shredder will ever take them, so they stay in your way to the end. Each shredder shows the colour it wants next, with the queue behind it, and it will only take that colour even if another brick is sitting in its mouth. A brick outlined in white can go now; one outlined in red is in the right place but waiting its turn. Room is tight on purpose. Arrow keys work once you have tapped a brick.

build dba1936 · progress is kept on this device