1 The problem, that is to say, is educational.
2 The problem is the same for all three super-states.
3 He examined the chess problem and set out the pieces.
4 In no chess problem since the beginning of the world has black ever won.
5 But the problems of perpetuating a hierarchical society go deeper than this.
6 There are therefore two great problems which the Party is concerned to solve.
7 It was a physical problem that had to be solved: how to get in touch with the girl and arrange a meeting.
8 The problem was how to keep the wheels of industry turning without increasing the real wealth of the world.
9 He put the white knight back in its place, but for the moment he could not settle down to serious study of the chess problem.
10 The arithmetical problems raised, for instance, by such a statement as 'two and two make five' were beyond his intellectual grasp.
11 Ever since the end of the nineteenth century, the problem of what to do with the surplus of consumption goods has been latent in industrial society.
12 It is a problem of continuously moulding the consciousness both of the directing group and of the larger executive group that lies immediately below it.
13 At present, when few human beings even have enough to eat, this problem is obviously not urgent, and it might not have become so, even if no artificial processes of destruction had been at work.