Escaping Bug

Annoying bugs do not give anyone live. People have tried all possible ways of their destruction, but nothing works. Your task is to use the main weapon against beetles - the brain. The game is essentially a duel. You need to shut out for the beetle and not let him escape. You will walk on stage, the beetle to get to the edge of the playing field, and you block his path. In one move, you can build a barrier only one cell. If well thought out your strategy in advance can cut waste beetle and take it into the environment.