Towards understanding the effects of neutrality on the sudoku problem

Over the last years, researchers have added neutrality in the evolutionary search in the hope that it can aid evolution. In this paper, we study the presence of neutrality that is already and to do so, we analised the fitness landscape of the Sudoku problem. How and why neutrality affects evolutionary search is a reasonably well-studied but still not clearly understood topic. Here, we use neutral walks, neutrality trajectories and fitness distance correlation to attempt to throw new light on this topic.