Timber Squirrel

A physics puzzle about building a bridge out of whatever floats. A squirrel wants a pinecone on the far side of a pond, and the logs and rafts on the bank will carry it there only if they are pushed into the water in the right order — everything drifts after a single shove, so a log sent out too hard ends up somewhere useless. Fifty levels rated on how few moves you used, with undo, restart and a hint that points rather than solves.