It is quite obvious that he would lose his Queen by the check of the Knight, if he took the Bishop.

6. Kt. takes K's P.6. K. Kt. to B's 3d.

If he take the Kt., you will play R. to K's sq., compelling him either to take it with his Q. or be mated.

7. K. R. to K's sq.7. Q. to K. B's 4th.
8. K. B. to K. Kt's 6th.8. Q. to K's 3d.
9. Kt. to B's 7th. (ch.), and gains the Queen.

GAME THE FOURTH.
Philidor's Defence.

WHITE. BLACK.
1. P. to K's 4th. 1. P. to K's 4th.
2. K. Kt. to B's 3d. 2. P. to Q's 3d.
3. P. to Q's 4th. 3. P. to K. B's 4th.
4. Q. P. takes P. 4. K. B. P. takes P.
5. Kt. to K. Kt's 5th. 5. P. to Q's 4th.
6. P. to K's 6th. 6. Kt. to K. R's 3d.
7. P. to K. B's 3d. 7. Q. Kt. to B's 3d.
8. B. to Q. Kt's 5th. 8. Q. to her 3d.
9. Q. Kt. to B's 3d. 9. Q. B. takes K. P.
10. K. Kt. takes B.10. Q. takes Kt.
11. Q. takes Q's P.11. Q. takes Q.
12. Kt. takes Q.12. Castles.
13. P. takes K. P.
You have a Pawn more than Black, and a better position.

FIRST VARIATION OF THIS ATTACK,
Commencing at White's 7th move.

WHITE. BLACK.
1. P. to K's 4th. 1. P. to K's 4th.
2. K. Kt. to B's 3d. 2. P. to Q's 3d.
3. P. to Q's 4th. 3. P. to K. B's 4th.
4. Q. P. takes P. 4. K. B. P. takes P.
5. Kt. to K. Kt's 5th. 5. P. to Q's 4th.
6. P. to K's 6th. 6. Kt. to K. R's 3d.
7. Q. Kt. to B's 3d. 7. P. to Q. B's 3d.
8. K. Kt. takes K. R. P. 8. Q. B. takes K. P. (best)
9. Kt. takes K. B. 9. K. takes Kt.
10. Q. Kt. takes K. P.10. Kt. to K. Kt's 5th.
11. K. Kt. to K. Kt's 5th, with the better game.

SECOND VARIATION OF THIS ATTACK.
Commencing at White's 8th move.