Does the foundation laid by 'Two such hints, however, have only a few possible answers in common, so that the solver can concentrate on them and pick the most probable one.' logically support 'Without hints, it would be too difficult for the problems to be solved.'
Two such hints, however, have only a few possible answers in common, so that the solver can concentrate on them and pick the most probable one.###Without hints, it would be too difficult for the problems to be solved.