| ... | 8. | K to K 8 | |
| 9. | Q mates at Kt sq. or R sq. |
TWO ROOKS AND KING AGAINST KING.
Fig. 17 shows the most unfavourable position for White's two Rooks. The shortest way to checkmate the Black King is as follows:
| WHITE. | BLACK. | ||
| 1. | R to K sq. | 1. | K to Q 5 |
| 2. | R (Kt sq.) to Q sq.: ch. | 2. | K to B 6 |
| 3. | R to K 2 | 3. | K to B |
| 4. | R to B 2: ch. | 4. | K to Kt 6 |
| 5. | R to B 8 | 5. | K to R 6 |
| 6. | R to Q Kt sq. | 6. | K to R 5 |
| 7. | R to R 8, mate. |
KING AND ROOK AGAINST KING.
Fig. 18 represents the most unfavourable position for White. The shortest way to checkmate the Black King is—