Watch this video to learn about the making of "Stack".
"Stack" pits five Cat machines, including Excavators and Telehandlers, against a mountain of massive wood blocks. The object of the game is for heavy equipment operators to remove and then re-position a stack of 27 blocks one at a time, without toppling the structure -- using only their Cat® machines and attachments. #BuiltForIt
Learn more: http://bit.ly/1ilR3e5