Stack Attack was the 2003 FIRST robotics competition. In this game there were bins similar to those made by rubbermaid for storage that were used for game pieces. In the first ten seconds of the game a human player from each team had 10 seconds to walk out onto the field and swap stacks of 4 game pieces that way you can start with stacks possibly higher than 4 game pieces. 25 game pieces were stacked in the middle of the field at the start of the game these could be used to add to your stack previously made by the human player or just to have on your side. At the end of the game you would receive 25 points per robot on your alliance if they finished on the platform in the middle of the field. Points were tallied by how high your stack was by how many game pieces you had on your alliances side plus how many robots of your alliance finished on the platform.