[ErvinI]

Pinning is fairly straightforward, as the rules are clearly underlined under G29.

Traffic jams don't really require to be defined, but the best way to describe them would be the same as the Lunacy scrums of 2009.

As for the above foul, it is an objectionable blockading call. I believe that when the rule was first created back in 2011 (at the very least, that's the oldest game that I definitely know had the rule), the rule was mainly used to prevent teams from ultimately cork-stopping the feeding stations, which was an essential objective to reach and could not be done without entering the feeding station safe zone.

Since then, blockading has become a very vague rule. There really wasn't any "essential objectives" in 2012 that could be feasibly blockaded. In 2013, blockading was supposed to be called when there was a robot in each side lane along their own pyramid, since there was little space along the sides for two robots to fit if they had certain dimensions. However, I know that at Waterloo there was some debate as to what "blockading" was, since according to the ref, a tall robot could be blockaded using only two robots, while <30" robots only got blockaded with three robots since a new lane opened up for them to use under the pyramid.

This season, the only objectives that can be stopped through multiple robots are trapping the ball and blocking both low goals at the same time. Since trapping is called under G12, the only true blockade spots are the low goals. I guess making a conga line with all your robots also can called as a blockade since it stops a team from reaching one end of the field, but that will require quite a bit of coordination.

I wish that blockading is actually more clearly defined next year.