In exploratory experiments , we used a Genetic Algorithm to learn
the weights of a perceptron network that played Tron. We found that simple agents
played interestingly, but also that coevolution may not always lead to robust
strategies. Collusion  was likely to appear in
the form of ``live and let live'' strategies such as the one shown in figure
3.3, where agents avoid confrontation and ``agree'' to tie,
splitting the point.