Variation IV.
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. K. Kt. to B's 3d.
3. Kt. takes K. P.3. P. to Q's 3d.
4. Kt. to K. B's 3d.4. Kt. takes K's P.
5. P. to Q's 4th.5. P. to Q's 4th.
6. K. B. to Q's 3d.6. K. B. to K's 2d.
7. Castles.7. Q. Kt. to B's 3d.
8. P. to Q. B's 4th.8. Q. B. to K's 3d.
9. P. to Q. R's 3d.9. Castles.

You are now enabled to play Q. to her B's 2d, and obtain a good attacking situation.

ANOTHER VARIATION,
Beginning at the 3d move of White.

WHITE. BLACK.
1. P. to K's 4th. 1. P. to K's 4th.
2. K. Kt. to B's 3d. 2. K. Kt. to B's 3d.
3. K. B. to Q. B's 4th. 3. Kt. takes P.
4. Q. to K's 2d. 4. P. to Q's 4th.
5. Kt. takes K. P. 5. K. B. to Q. B. 4 (best)
6. P. to Q's 3d. 6. B. takes K. B. P. (ch.)
7. K. to Q's sq. (best) 7. B. to Q. Kt's 3d.
8. Kt. takes K. B. P. 8. Q. B. to K. Kt's 5th.
9. Kt. takes Q. 9. B. takes Q. (ch.)
10. K. takes B.10. Kt. to K. B's 7th.
11. R. to K. B's sq.11. P. takes B.
12. Kt. to K's 6th.12. P. takes P. (ch.)
13. P. takes P.13. K. to his 2d.
14. Kt. takes K. Kt. P.14. R. to K. Kt's sq.
15. Kt. to K. B's 5th. (ch.)15. K. to his 3d.
16. Q. B. to K's 3d.16. B. takes B.
17. Kt. takes B.17. Kt. to K. Kt's 5th.

The positions are equal, but you have a pawn more.

Variation (A.)
Beginning at Black's 6th move.

WHITE. BLACK.
1. P. to K's 4th. 1. P. to K's 4th.
2. K. Kt. to B's 3d. 2. K. Kt. to B's 3d.
3. K. B. to Q. B's 4th. 3. Kt. takes P.
4. Q. to K's 2d. 4. P. to Q's 4th.
5. Kt. takes K. P. 5. K. B. to Q. B's 4 (best)
6. P. to Q's 3d. 6. Q. P. takes B.
7. Q. takes Kt. 7. Castles.
8. Q. takes doubled P. 8. Q. to K's 2d.
9. P. to K. B's 4th. 9. Q. Kt. to B's 3d.
10. Q. to K's 4th.10. K. R. to K's sq.
11. K. to Q's sq.11. Q. to K. R's 5th.
12. P. to K. Kt's 3d.12. Q. to K. R's 4th. (ch.)
13. K. to Q's 2d.13. Kt. takes Kt.
14. P. takes Kt.14. R. takes P.
Winning easily.

Instead, however, of playing 12. P. to K. Kt's 3d, you might at that moment move Q. Kt. to Q's 2d.