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. P. 8. P. takes Kt.
9. Q. to K. R's 5th. (ch.) 9. P. to K. Kt's 3d.
10. Q. to K's 5th.10. K. R. to Kt's sq.
11. B. takes K. Kt.11. B. takes B.
12. Q. R. to Q's sq.12. Q. to K's 2d.
13. Kt. takes K. P.13. Q. B. takes P.
14. R. to Q's 6th. (the winning move.)14. Q. B. to K. B's 4th.
15. Kt. to B's 6th. (ch.)15. K. to B's sq. (best)
16. R. to Q's 8th. (ch.)16. K. to B's 2d.
17. B. to Q. B's 4th. (ch.)17. B. to K's 3d. (best)
18. Kt. takes R., and wins.

VARIATION OF THE DEFENCE IN THIS OPENING,
Beginning at Black's 3d 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. K. Kt. to B's 3d.
4. Q. B. to K. Kt's 5th. 4. Q. B. to K. Kt's 5th.
5. P. takes K. P. 5. B. takes Kt.
6. Q. takes B. 6. P. takes P.
7. Q. to her Kt's 3d. 7. P. to Q. Kt's 3d.
8. K. B. to Q. B's 4th. 8. Q. to Q's 2d.
9. B. takes Kt. 9. P. takes B.
10. Q. Kt. to B's 3d.10. K. B. to K. Kt's 2d.
11. Q. R. to Q's sq.11. Q. to K's 2d.
12. B. to Q. Kt's 5th. (ch.)12. P. to Q. B's 3d.
13. Kt. to Q's 5th, with an excellent game.

ANOTHER VARIATION OF THE DEFENCE,
Beginning also from Black's 3d 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. Q. B. to K. Kt's 5th.
4. P. takes P. 4. B. takes Kt.
5. Q. takes B. 5. P. takes P.
6. B. to Q. B's 4th. 6. Q. to K. B's 3d.
7. Q. to her Kt's 3d. 7. P. to Q. Kt's 3d.
8. Q. Kt. to B's 3d. 8. P. to Q. B's 3d.
9. Castles. 9. B. to Q's 3d.
10. P. to K. B's 4th.10. P. takes P.
11. Q. B. takes P.11. B. takes B. (best)
12. P. to K's 5th.12. B. takes K. R. P. (ch.)
And White has the better game.

SUMMARY OF THE FOREGOING VARIATIONS
IN PHILIDOR'S DEFENCE.

The result of the preceding analysis serves to prove that Q. P. one, as the second move of Black, is not a tenable defence; since, play as he can afterwards, if the best moves are adopted by the first player, he will always have a very insecure or a very constrained game.