Pulley

"Tackle" this jigsaw puzzle of a traditional piece of machinery, a block and tackle pulley.

Photograph © Michael Green Sugar Land, Texas

Controls: Click down on a piece to move it and release your mouse button to place it. A piece placed next to a connecting piece snaps the two together. The timer begins once you hit the start button and stops when you have completed the jigsaw puzzle. There are advanced options in the menu to the left.