CHALLENGE rule randomly generates challenges.

src/dk/itu/mario/level/FitnessEvaluator.java

@@ -9,6 +9,6 @@ public class FitnessEvaluator {
 		System.out.println("Evaluating LevelParseTree for fitness");
 		List<LevelComponent> levelTemplate = parseTree.getLevelTemplate();
 		//a good level has 8-16 components, plus some additional complexity depending on the player's skill level
-		return levelTemplate.size() > 7 && levelTemplate.size() < 17;
+		return levelTemplate.size() > 9 && levelTemplate.size() < 25;
 	}
 }