Silo is a very simple game. Rules: Move your highest checker within a stack to your right one square, carrying with it any enemy checkers that may be stacked above it. Place your checker on top of the stack in that square, if there is a stack in that square. If there’s no stack in that square, just place your checker on the board. Object: Be the first to get all of your checkers into a contiguous sub-stack. In other words, a pure sub-stack of only your checkers. Enemy checkers may be above and/or below your sub-stack.

The checkers in Silo are photos of bricks and tar paper.

Thanks to Tisaac and everyone else who helped with this project.

UPDATE: RG and OooYouTouchMyTraLaLa discovered a tactic in the previous version of Silo which gave a strong advantage (among top players) to Player 1. I modified the win condition slightly, and I expect this will solve the problem. Thanks to RG and OooYouTouchMyTraLaLa for discovering the issue with the old version, and for evaluating the new version.