He adds that unless at least the initial moves are recreated, "then an interesting medieval battle may well take place, but it will not be a re-creation of Crécy." Still, rules aimed at the non-professional hobby market therefore inevitably contain abstractions. It is generally in the area of the abstraction liberties taken by the designers that the differences between rules can be found. Most follow tried and true conventions to the extent that a chess player would recognize wargaming merely as a different scaled version of his or her own game.