WHITE. BLACK.
1. P. to K's 4th. 1. P. to K's 4th.
2. K. B. to Q. B's 4th. 2. K. B. to Q. B's 4th.
3. Q. to K. R's 5th. 3. Q. P. one.
4. Q. takes K. B. P., giving checkmate.

_Smothered Mate._--A checkmate which is sometimes given by the Knight
when the adverse King is hemmed in, or _smothered_, by his own forces.
(See diagram No. 12.)

_Stalemate._--When one party has his King so circumstanced that, not
being at the moment in check, he cannot play him without going into
check, and at the same time has no other Piece or Pawn to move instead,
he is said to be _stalemated_, and the game is considered drawn. (See
diagram No. 13.)

_Taking a Pawn en Passant, or in Passing._--It has been shown before, in
speaking of the action of the Pawn, that he is limited in his march to
one square forward at a time, when not capturing, and one square forward
diagonally, either to the right or left, when he takes an adversary, but
that he has the privilege, on being first played in the game, to advance
two squares, unless in so doing he pass a square which is attacked by a
hostile Pawn; in which case the opponent may, at his option, permit him
to make the two steps forward, and there remain, or may capture him in
his passage in the same way as if he had moved but one step.


ILLUSTRATIONS OF TECHNICAL TERMS.

_The Operation of "Castling;" and "Discovered Check."_