W. The queen's knight at his queen's second square.
11 B. The king's knight at his rook's fourth
square.* W. The queen at her king's third square.
12 B. The king's knight takes the bishop.f W. The queen retakes the knight.
13 B. The queen's bishop takes the knight.* W. The pawn retakes the bishop.
14 B. The king's bishop's pawn two moves.
\V. The queen at her king's knight's third square.
15 B. The pawn takes the pawn. W. The bishop's pawn retakes it.
1G B. The king's rook at his king's bishop's third
square. § W. The king's rook's pawn two steps. || 17 B. The queen's rook at his kings bishop's
* He plays this knight to make room for his king's bishop's pawn, with a view to advance it two steps, in order to break the chain of your pawns.
t If he had pushed his king's bishop's pawn instead of taking your bishop, you must then have attacked his queen with your queen's bishop, and pushed your king's rook's pawn the next move upon his bishop, to compel him to take your knight; in this case your best way would be to retake his bishop with your pawn, in order to support your royal pawn, and replace it in case it be taken.
X If he did not take your knight, his bishop would remain imprisoned by your pawns, or he would lose at least three moves to get him free.
§ He plays this rook with an intention either to double it, or to remove your queen.
H You push this pawn two steps to give your queen more room, who, being attacked, can retire behind this pawn, and there remain, threatening her adversary's king's rook's pawn. Your pawn advancing afterwards will become dangerous to your adversary's king.