Diagram 18.

                 WHITE.  BLACK.
       1.  Q. to K. B’s 5th. (ch.) 1.  K. to K. Kt’s 7th.
       2.  Q. to K’s 4th. (ch.) 2.  K. to B’s 7th.
       3.  Q. to K. B’s 4th. (ch.) 3.  K. to Kt’s 7th.
       4.  Q. to K’s 3d. 4.  K. to B’s 8th.
       5.  Q. to K. B’s 3d. (ch.) 5.  K. to his 8th.
       6.  K. to Q’s 4th. 6.  K. to Q’s 8th.
       7.  Q. to her 3d. (ch.) 7.  K. to his 8th.
       8.  K. to his 3d. 8.  K. to B’s 8th.
       9.  Q. takes P. (ch.) and wins.

The same mode of procedure can always be adopted, unless the single Pawn should be either on the Bishop’s or Rook’s file, in which case Black may usually make a drawn game, owing to the power which he then has of making a stalemate.  His having this alternative, however, altogether depends upon the distance which the adverse King may chance to be from the scene of action.  In the next position (Diagram 19) the game is drawn.

WHITE.                      BLACK.
1.  Q. to K. Kt’s 4th. (ch.)      1.  K. to R’s 8th.
2.  Q. to K. B’s 3d. (ch.)        2.  K. to Kt’s 8th.
3.  Q. to K. Kt’s 3d. (ch.)       3.  K. to R’s 8th.

And it is evident, that if White take the Pawn, his adversary is stalemated.

The result is the same when the Pawn is on the Rook’s file, as you will at once see by making the experiment.

The next position (see Diagram 20), is a very ingenious exception to this rule, and will well repay your attention.

         WHITE.  BLACK.

1.  K. to Q. B’s 5th. (ch.) 1.  K. to Q. B’s 7th. (best)
2.  Q. to K. Kt’s 2d. (ch.) 2.  K. to Q. B’s 6th.
3.  Q. to K. B’s sq. 3.  K. to Q. Kt’s 7th.
4.  Q. to K’s 2d. (ch.) 4.  K. to Q. Kt’s 6th.
5.  Q. to her sq. (ch.) 5.  K. to Q. Kt’s 7th.
6.  Q. to her 2d. sq. (ch.) 6.  K. to Q. Kt’s 8th.
7.  K. to Q. Kt’s 4th. 7.  P. Queens.
8.  K. to Q. Kt’s 3d. 

                                                And wins.

ROOK AGAINST BISHOP.

Diagram 21.

       WHITE.  BLACK.

1.  B. to Q. Kt’s 7th. 1.  R. to Q. Kt’s 3d.
2.  B. to Q’s 5th. 2.  R. to Q. Kt’s 7th.
3.  B. to Q. B’s 6th. 3.  R. to K. B’s 7th. (ch.)
4.  K. to Kt’s sq. 4.  K. to his 7th.
5.  B. to Q’s 5th. 5.  K. to his 8th.
6.  B. to Q. B’s 6th. 6.  R. to K. B’s 3d.
7.  B. to Q. Kt’s 7th. 7.  R. to K. Kt’s 3d. (ch.)
8.  K. to K. R’s 2d. 8.  K. to K. B’s 7th.
9.  K. to K. R’s 3d, &c. 

                                    And the game is drawn.

Diagram 22.