Note A — Chapter I
Reading edition
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.

WHITE.