material.

Another square which after castling on the King side is often the
mark of attack for the Queen in connection with either Knight or
Bishop, is the one immediately in front of the King in the
Knight's file. Diagram 26 illustrates several possibilities of
this kind. White, on the move, can play (1) Q-g5, attacking for
the second time the Pawn g7 which is only once protected. The
threat, however, is not only to win a Pawn, but to win the game,
for in taking the Pawn with the Queen White would checkmate
Black's King.

+---------------------------------------+
8 | #R | | | | | #R | #K | |
|---------------------------------------|
7 | #P | #P | #P | | | #P | #P | #P |
|---------------------------------------|
6 | | #B | | #P | | | | |
|---------------------------------------|
5 | | | #Q | | #P | ^Kt| | |
|---------------------------------------|
4 | | #Kt| | | ^P | | | ^B |
|---------------------------------------|
3 | | ^P | | ^P | | | | |
|---------------------------------------|
2 | | ^P | ^P | ^Q | | ^P | ^P | ^P |
|---------------------------------------|
1 | ^R | | | | | ^R | ^K | |
+---------------------------------------+
a b c d e f g h