@Parameterized.Parameters
    public static Collection<Object[]> createFinders() {
        Collection<Object[]> finders = Arrays.asList(
                new Object[]{new DepthFirstSolutionFinder(15)},
                new Object[]{new BreadthFirstSolutionFinder()},
                new Object[]{new AStartSolutionFinder<>(new GoodPuzzuleEvaluator())});

        return finders;
    }