freedom from obstruction by their own and the enemy's men. For example,
when the forces are duly ranged in order of battle before the
commencement of the game, the Knight is the only one of the eight
capital Pieces which can be played before the Pawns are moved--King,
Queen, Bishop, and Rook are all hemmed in by the rank of Pawns, which
they cannot overleap; but the Knight, having the liberty of springing
over the heads of other men, can be brought into the field at once. His
move is one square _in a straight line_, and _one in an oblique
direction_; or it may be perhaps better understood by saying that he
moves two squares _in a straight line_, and _one in a side direction_.

No. 6.

BLACK.
+---+---+---+---+---+---+---+---+
| | | | | | | | |
+---+---+---+---+---+---+---+---+
| | | | | | | | |
+---+---+---+---+---+---+---+---+
| | | 2 | | 3 | | | |
+---+---+---+---+---+---+---+---+
| | 1 | | | | 4 | | |
+---+---+---+---+---+---+---+---+
| | | | N*| | | | |
+---+---+---+---+---+---+---+---+
| | 8 | | | | 5 | | |
+---+---+---+---+---+---+---+---+
| | | 7 | | 6 | | | |
+---+---+---+---+---+---+---+---+
| | | | | | | | |