BLACK.

WHITE.

QUEEN AGAINST ROOK.
Diagram 12.

WHITE. BLACK.
1. K. to Kt's 6th.
2. K. to K's 6th. 2. R. to Q. B's 7th.
3. K. to Q's 5th. 3. K. to Kt's 7th.
4. K. to Q's 4th. 4. K. to R's 8th.
5. K. to Q's 3d. 5. R. to Kt's 7th.
6. Q. to K. R's 4th. (ch.) 6. K. to Kt's 8th.
7. K. to B's 3d. 7. R. to K. R's 7th.
8. Q. to Kt's 5th. (ch.) 8. K. to R's 8th.
9. Q. to R's 6th. (ch.) 9. K. to Kt's 8th.
10. Q. to Kt's 6th. (ch.)10. K. to R's 7th.
11. Q. to R's 7th. (ch.)11. K. to Kt's 8th.
12. Q. to Kt's 8th. (ch.)
Then takes Rook, and wins.

QUEEN AGAINST ROOK AND PAWN.

With few exceptions, arising from peculiar situations, the Queen wins also against a Rook and Pawn. Diagram 13, illustrating a won game, is from Philidor.

Diagram 13.
White moves and wins.

WHITE. BLACK.
1. Q. to R's 7th. (ch.) 1. K. to K's 3d. (best.)
2. Q. to Q. B's 7th. 2. R. to Q. B's 4th.
3. Q. to Q's 8th.[A] 3. R. to K's 4th.
4. Q. to K's 8th. (ch.) 4. K. to Q's 4th.
5. Q. to Q. B's 8th. 5. R. to K's 5th. (ch.)
6. K. to K. B's 5th. 6. R. to K's 4th. (ch.)
7. K. to K. B's 6th. 7. R. to K's 5th.
8. Q. to K. B's 5th. (ch.) 8. R. to K's 4th.
9. Q. to Q's 3d. (ch.) 9. K. to Q. B's 4th.
10. Q. to Q's 2d.10. K. to Q. B's 3d.
11. Q. to Q's 4th.11. K. to Q's 2d.
12. Q. to Q. B's 4th.12. R. to Q. B's 4th.
13. Q. to K. B's 7th. (ch.)13. K. to Q. B's 3d.
14. K. to his 7th.14. R. to K's 4th. (ch.)
15. K. to Q's 8th.15. R. to Q. B's 4th.
16. Q. to Q's 7th. (ch.)16. K. to Q's 4th.
17. K. to K's 7th.17. R. to Q. B's 3d.
18. Q. to K. B's 5th. (ch.)18. K. to Q. B's 5th.
19. K. to Q's 7th.19. R. to Q. B's 4th.
20. Q. to K's 4th. (ch.)20. K. to Kt's 6th.
21. K. takes P.
And wins.