This is game #10 in the Games on Half a Checkerboard Series This game is in the family of games that includes Amazons, and Slimetrail where the object is to cause one's opponent to not be able to move due to the number of spaces available on the board gets reduced as players play the game. Each player has a piece that has a move like a Chess Knight and also put down barricades to restrict movement. From these two elements comes the name of the game.