The assault of the Knight is more subtle and dangerous than that of any other Piece, because he attacks without putting himself en prise, and his attack can never be resisted by the interposition of another man.
At the commencement of a game, the best place for the King's Knight is at K. B's 3d sq.; it there attacks your adversary's K's Pawn, if it has been moved two squares, and offers no impediment to the playing out your King's Bishop, and prevents the adversary from placing his Queen on your King Rook's 4th sq., where she would often be a source of restraint and danger to your King. Many persons prefer playing the K. Kt. to K's 2d at the second move, from the mistaken notion that the K. B's P. should be moved before the Knight is played to B's 3d; this is an error, and generally leads to a very bad game.
When you have brought out your Q. Kt. to B's 3d, it is frequently advisable, at a proper opportunity, to get him round by K's 2d sq. to the K. Kt's 3d, where he exercises a very important influence, by threatening, whenever the square is left unguarded, to post himself on K. B's 5th.
A Knight with three or four Pawns, at the end of a game, has an advantage over a Bishop with an equal number of Pawns, because he can leap from white to black, and thus attack the Pawns on either colored squares, whereas the Bishop can attack them only when they move on squares of the color of his diagonals. In similar circumstances, however, he is not so useful in defending as a Bishop or a Rook, since if forced to remove he ceases to defend, while the Rook or Bishop may retreat and still protect.
Concerning the Pawns.—Struck by the scope and power of the higher Pieces, young players commonly overlook the homely Pawns, or deem them scarcely worthy of regard, and are amazed to learn that the combinations of these simple elements are among the most refined and arduous studies of the science. Yet such is the fact, and without a thorough comprehension of their quiet but remarkable predominance in almost every circumstance of the game, it is impossible for any one to attain a high degree of excellence.
It is generally advantageous for your Pawns to occupy the middle of the board, because when there they greatly retard the movements of the opposing forces. The King's Pawn and Queen's Pawn, at their fourth squares, are well posted, but it is not easy to maintain them in that position, and if you are driven to advance one of them, the power of both is much diminished. It is well, therefore, not to be too eager to establish two Pawns abreast in the centre until you are fully able to sustain them there.
When you have two Pawns abreast, the King and Queen's, for instance, at their fourth squares, should the adversary attack one of them with a Pawn, it is occasionally better to advance the Pawn that is attacked another step, than to take the Pawn.
The Pawns, however, should seldom be far advanced, unless they can be properly sustained by the Pieces. Pawns at their fourth squares are therefore mostly more powerful than at their sixth.
The King's Bishop's Pawn having no support but that of the King, is usually the point to which the first attack is directed, and more than ordinary care should be taken to preserve it. It is rarely good play to move the King's Bishop's Pawn to Bishop's 3d early in the game.
As a general rule, it is not advisable to move King's Knight's Pawn or Queen's Knight's Pawn early in the game. The former played to K. Kt's 3d square will often allow your adversary to play his Queen's Bishop to your King's Rook's 3d square, a dangerous move when you have castled on King's side.