AN ATTEMPT TO ANALYSE THE AUTOMATON CHESS PLAYER, OF MR. DE KEMPELEN.
WITH AN EASY METHOD OF IMITATING THE MOVEMENTS OF THAT CELEBRATED FIGURE.
ILLUSTRATED BY ORIGINAL DRAWINGS.
TO WHICH IS ADDED, A COPIOUS COLLECTION OF THE KNIGHT’S MOVES OVER THE CHESS BOARD.
LONDON: PRINTED FOR J. BOOTH, DUKE STREET, PORTLAND PLACE. 1821.
Mine eyes are made the fools o’ the other senses. SHAKSPEARE.
I had not thought to have unlockt my lips In this unhallowed air, but that this juggler Would think to charm my judgment, as mine eyes. MILTON.
AN ATTEMPT TO ANALYSE, &c.
The Automaton Chess Player was first introduced into England by Mr. de Kempelen, its inventer, about the year 1783. It was brought again into this country two years ago, and exhibited under the direction of a very ingenious gentleman, Mr. Maelzel.
The annexed drawings, (plate 1, figs. 1 and 2,) represent the general appearance of the machine. It runs on castors, and is either seen on the floor when the doors of the apartment are thrown open, or is wheeled into the room at the commencement of the exhibition.
The exhibiter, in order to shew the mechanism, as he informs the spectators, unlocks the door (A, fig. 1.) of the chest, which exposes to view a small cupboard, lined with black or dark coloured cloth, and containing different pieces of machinery, which seem to occupy the whole space. He next opens the door (B, fig. 2.) at the back of the same cupboard, and, holding a lighted candle at the opening, still further exposes the machinery within. The candle being withdrawn, the door (B) is then locked. The drawer (G G, fig. 1.) in the front of the chest is next opened, and a set of chess men, a small box of counters, and a cushion for the support of the Automaton’s arm, are taken out of it. The exhibiter now opens the two front doors (C C, fig. 1.) of the large cupboard, and the back door (D, fig. 2.) of the same, and applies a candle as in the former case. This cupboard is lined with cloth like the other, but it contains only a few pieces of machinery. The chest is now wheeled round, the garments of the figure are lifted up, and the door (E, fig. 2,) in the trunk, and another (F,) in the thigh, are opened. But it must be observed that the doors (B and D) are closed. The circumstance is mentioned, because Mr. de Windisch, in his letters on this subject, has a passage which would seem to imply that Mr. Maelzel’s mode of exhibiting the interior differs from that which Mr. de Kempelen employed. “But do not imagine,” says De Windisch, “like many others, that the inventer shuts one door as he opens another; the entire Automaton is seen at the same time uncovered, his garments turned up, and the drawer opened, as well as all the doors of the chest.”
Now a reference to De Kempelen’s second drawing, published by Mechel, and annexed to De Windisch’s letters, will shew that, when the chest was turned round, the doors (B and D) were actually closed, as they always have been under the direction of Mr. Maelzel. In the chest of the latter gentleman, indeed, the doors in question are suspended by hinges attached to the upper part, (as in fig. 2), and consequently close by their own gravity. But the fact is, that the exhibiter never fails to lock them, though he leaves the keys in one of the locks. The other doors are allowed to swing about whilst the chest is wheeled round.
The chest is now restored to its former position on the floor; the doors in front, and the drawer, are closed and locked; and the exhibiter, after he has occupied some time at the back of the chest, in apparently adjusting the machinery, removes the pipe from the hand of the figure, winds up the works, and the Automaton begins to move.
These movements, resulting as they appear to do, from mere mechanism, yet strongly impressed with the distinctive character of an intellectual guidance, have excited the admiration of the curious during a period little short of forty years. In that time various conjectures have been offered to the world as solutions of the problem; but no one, as far as I know, have attempted to imitate the movements, it is fair to conclude, either that the means proposed are inadequate to the end, or that the description of them is too imperfect to enable a workman to complete the machinery.
Automata may be divided into three classes—the simple—the compound—and the spurious.
The first class comprises those insulated Automata whose movements result from mechanism alone; by the aid of which they perform certain actions, and continue them, so long as the moving force is kept in an active state.
The second class includes those Automata, which, like the former, are moved by machinery; but, possessing at the same time a communication, not immediately apparent, with human agency, are enabled to change the regular order and succession of their movements, according to existing circumstances; and hence, in some measure, to assume the character of living beings.
The third class contains those Automata which, under the semblance only of mechanism, are wholly directed and controlled by a concealed human agent.
The phenomena of the Chess Player are inconsistent with the effects of mere mechanism; for, however great and surprising the powers of mechanism may be, the movements that spring from it, are necessarily limited and uniform: it cannot usurp and exercise the faculties of mind; it cannot be made to vary its operations, so as to meet the ever-varying circumstances of a game of chess. This is the province of intellect alone; and the Chess Player must consequently relinquish all claim to be admitted into the first division. Let us examine its title to be ranked in the second class.
The chess board contains sixty-four squares, and in order to execute the movements of the Chess Player, distinct trains of machinery must be formed, which shall be capable, when set in motion, of conveying the hand of the Automaton to each, and to any, of these several squares. Having arrived at a square, and taken up a chess man, it will be requisite, either to withdraw the hand towards the side, and without the limits of the board, for the purpose of letting drop the chess man there, and thence to proceed to another square, and remove a chess man to a third square; or it may be required to pass at once from the first square to any other on the board, and there to deposit the man. These movements must be promptly performed, and repeated as often as the circumstances of the game may call for them.
Setting aside a great variety of minor details, it will be evident to any person, even slightly acquainted with mechanics, that the execution of these movements, so extensive, so complicated, and so variable, would be attended with difficulties almost insurmountable; but we will suppose for a moment that these obstacles are overcome; let it be conceded that a machine has been constructed so perfect, that, on giving motion to the respective trains, the required movement shall be instantly performed. What then? The main object will be still unattained! Where is the intelligence and the “promethean heat” that can animate the Automaton and direct its operations? Not only must an intellectual agent be provided, but between such an agent and his deputy, the Automaton, a direct communication must be formed and preserved, liable to no interruption, and yet so secret that the penetrating eye of the most inquisitive observer may not be able to detect it. Till this be done, the Chess Player’s title to be admitted into the second division will, at any rate, continue in abeyance.
I am aware that on this part of the subject conjecture has been busy, and different plans have been devised for the maintenance of the intercourse alluded to. The task has been imposed on the exhibiter of the machine, he being the only person on whom it could devolve with even a shadow of probability; and to effect his purpose it has been suggested that he might touch certain springs, or pull “a wire not much thicker than a hair,” or be furnished with a powerful magnet. But such conjectures are unworthy of serious refutation; for besides the uncertainty and constant liability to interruption of such modes of communication, they are actually at variance with the uniform conduct of the exhibiter. Whoever has witnessed the exhibition will have seen that the exhibiter is not confined to a particular spot in the room, but, on the contrary, that he is frequently, during the progress of the game, at a distance from the chest, far beyond the sphere of influence of any of these proposed modes; and if, at such times, the Automaton can move a single joint, it is proof decisive that its action springs from another source.
Having now shewn how difficult, and perhaps impossible, it would be to execute the movements of the Chess Player by mechanism, and maintain, at the same time, a communication with the agent, who would be required to give life, as it were, and intelligence to the operations, it becomes necessary to inquire whether the prevailing opinion, which attributes these movements to machinery, be, or be not, established in fact; for, if this opinion should be found, on examination, to originate merely in the artful management and display of some parts of the apparatus, and to rest on no solid basis, there would be no longer any embarrassment in appreciating the real value of the Chess Player, nor in apportioning a proper station for it, considered as a work of art.
At the commencement of the exhibition the spectators are gratuitously made acquainted with the interior of the chest, which is divided into two unequal compartments, and occupied by pieces of machinery, so arranged, as apparently to render the concealment of any human being impossible. When the movements of the Automaton begin, the beholders, in the first moments of surprise, and in the absence of any ostensible living cause, very naturally refer the effect to the mechanism, which has been exhibited; and with likelihood enough, for the movements immediately follow the familiar action and well known sound of winding up clockwork, and are moreover very skillfully accompanied by the grating noise of moving wheels. But, these indications excepted, where is the evidence that the machinery moves, or that the slightest influence is exerted by it on the arm of the Automaton? The whole is excluded from view, and a moment’s reflection will convince any one that no stress can be laid on the winding up, nor on the accompanying sounds, which are imitable in various ways.
If, however, no proof can be given of the actual movement of the machinery, the following considerations will tend to shew that it remains quiescent, and is probably not formed for motion.
An artist, whose talents had enabled him to contrive machinery capable of executing the varied and extensive movements displayed by the Automaton, would surely be desirous of laying open to view as much of the mechanism of his contrivance, while in actual motion, as he could do, consistently with the reservation of his secret; if for no other reason, at least to convince the lookers-on that deception formed no part of his plan. Now it cannot be reasonably urged, in vindication of the inventer’s forbearance, in the instance of the Chess Player, that even a glance at any part of the machinery in motion would betray the secret; for a question will immediately arise, Why then is the machinery at rest so freely exposed? On that score no apprehension seems to be entertained; the chest is ostentatiously opened, and the semblance, at least, of wheels, and pullies, and levers, is submitted to inspection without reserve: but when their reality should appear, and their connection with the Automaton be made manifest, the doors are carefully closed, and the spectators are required to pay large drafts on their credulity, without any means of further examination. The glaring contradiction between eager display on the one hand, and studied concealment on the other, can only be reconciled by considering the exhibition of the mechanism as a mere stratagem, calculated to distract the attention, and mislead the judgment, of the spectators.