Algodoo

(this is still in beta stage)

The objective of this game is to drop on the shut on the left all the objects that fall. Sometimes the chains may jam, and if you unroll the chains too much they will start to roll back on the other direction. If you force the chains too much (either pulling too hard, or with too sudden movements), they may get jammed, rarely you will be able to finish with one of the chains jammed

The controls are described ont he splash screen (but once you start the game, to go back tot he splash screen, press control-Z twice)

ps:in spite of the difficulty in some cases, it is indeed possible to throw away all the objects, including the longer ones), I`ve done it several times, though often not without a few tries for several of them