[ttldomination]

If you do manage to construct this "wall." What is the probability that you'll be able to maneuver as well as the robot which scrambles to score?

If you're up against a decent offensive bot, then the robot should be able to hold a LARGE amount of balls and then should be able to proceed and score them.

As easy as it may seem to build a bot with a large wall, I agree with gblake on that it won't be that effective during the match.