A special notation has been adopted to make the study of games
and positions possible, and it is necessary for students of the
game to become thoroughly conversant with it. The original and
earliest notation is still in use in English, French, and Spanish
speaking countries. It is derived from the original position in
the game, in that the squares take the names of the pieces which
occupy them. Thus the corner squares are called R 1 (Rook's
square or Rook's first), and to distinguish them from one another
QR1 or KR 1 (Queen's or King's Rook's square). The squares
immediately in front are called QR2 or KR2. A distinction is made
between White and Black, and White's R 1 is Black's R 8, Black's
R 2 is White's R 7, White's K B 3 is Black's KB6, and so on. K
stands for King; Q for Queen; B for Bishop; Kt for Knight; R for
Rook; and P for Pawn. In describing a capture, only the capturing
and the captured pieces are mentioned, and not the squares.
When confusion is possible, it is customary to add whether King's
side or Queen's side pieces are concerned, e.g. KRx Q Kt. In
this notation it is necessary to bear in mind which Kt is the Q
Kt, which R is the KR. This becomes increasingly difficult as the
game goes on and pieces change their places. Many sets of
chessmen have one Rook and one Knight stamped with a special
sign, to show they are King's side pieces. This is not necessary
in the case of Bishops: a white KBis always on white squares, a
white QBon black squares.