[Footnote A: We append a diagram here, showing a position which has
frequently been misapprehended by unpractised players.

By inspecting the diagram it will be seen that the White King is in
check of the Black Queen. By the simple move of the White Rook to K.
Kt's 5th square, checking the Black King, and at the same time
discovering check by the White Queen, Black is checkmated, although
having by far the strongest force of men. We give the position to show
that any Piece or Pawn, although employed in covering a check of its own
King, has nevertheless the power to check the adverse King.


No. 10.

BLACK.
+---+---+---+---+---+---+---+---+
| | | | | | | | Q |
+---+---+---+---+---+---+---+---+
| | | | | Q*| P*| R | |
+---+---+---+---+---+---+---+---+
| | | | P*| N*| | | |
+---+---+---+---+---+---+---+---+
| | | | | K*| | | |
+---+---+---+---+---+---+---+---+
| | | | | R*| P*| | K |
+---+---+---+---+---+---+---+---+
| | | | | | | | |
+---+---+---+---+---+---+---+---+
| | | | | | | | |
+---+---+---+---+---+---+---+---+