B. The king's bishop gives check.
5 W. The king's knight's pawn once move.
B. The pawn takes the pawn.
6 W. The king castles on his own side.
B. The pawn takes the rook's pawn and gives check.
7 W. The king at his rook's square.
B. The king's bishop at his third square.*
8 W. The king's pawn one move.
B. The queen's pawn two steps.
9 W. The king's pawn takes the bishop.
B. The king's knight takes the pawn.
10 W. The king's bishop at his queen's knight's
third square. B. The queen's bishop at his king's third square.
11 W. The queen's pawn one move.-f'
B. The king's rook's pawn one move.j
12 W. The queen's bishop at his king's bishop's
fourth square. B. The queen's bishop's pawn two steps.
* If, instead of playing this bishop at his third square, he had played it at his king's second square, you had won the game in a few moves, which appears by the first back-game.
f Without a sacrifice of this bishop he could not win the game; but, losing it for three pawns, he becomes your conqueror; which three pawns (provided he is not too hasty in pushing them forward, and that they are always well sustained by his pieces) will win the game in spite of your best defence.
$ If you had pushed this pawn two steps, you had given to his knight a free entry into your game, which would have lost it very soon. But, to make this more evident, see a second back-game from his eleventh move.
§ This move is of great consequence, because it prevents you from attacking his king's knight with your queen's bishop, which would have enabled you to separate his pawns by changing one of your rooks for one of his knights.