Of course, by "royal row" is meant the row on which the king originally stands at the beginning of a game. Though, if Black plays badly, he may, in certain positions, be mated in fewer moves, the above provides for every variation he can possibly bring about.
| White. | Black. |
| 1. Kt to QB 3rd | 1. P to Q 4th |
| 2. Kt takes QP | 2. Kt to QB 3rd |
| 3. Kt takes KP | 3. P to KKt 4th |
| 4. Kt takes B | 4. Kt to KB 3rd |
| 5. Kt takes P | 5. Kt to K 5th |
| 6. Kt takes Kt | 6. Kt to B 6th |
| 7. Kt takes Q | 7. R to KKt sq |
| 8. Kt takes BP | 8. R to KKt 3rd |
| 9. Kt takes P | 9. R to K 3rd |
| 10. Kt takes P | 10. Kt to Kt 8th |
| 11. Kt takes B | 11. R to R 6th |
| 12. Kt takes R | 12. P to Kt 4th |
| 13. Kt takes P (ch) | 13. K to B 2nd |
| 14. Kt takes P | 14. K to Kt 3rd |
| 15. Kt takes R | 15. K to R 4th |
| 16. Kt takes Kt | 16. K to R 5th |
| White now mates in three moves. | |
| 17. P to Q 4th | 17. K to R 4th |
| 18. Q to Q 3rd | 18. K moves |
| 19. Q to KR 3rd (mate) | |
| If 17. K to Kt 5th | |
| 18. P to K 4th (dis. ch) | 18. K moves |
| 19. P to KKt 3rd (mate) | |
The position after the sixteenth move, with the mate in three moves, was first given by S. Loyd in Chess Nuts.
[352.—IMMOVABLE PAWNS.—solution]
| 1. Kt to KB 3 |
| 2. Kt to KR 4 |
| 3. Kt to Kt 6 |
| 4. Kt takes R |
| 5. Kt to Kt 6 |
| 6. Kt takes B |
| 7. K takes Kt |
| 8. Kt to QB 3 |
| 9. Kt to R 4 |
| 10. Kt to Kt 6 |
| 11. Kt takes R |
| 12. Kt to Kt 6 |
| 13. Kt takes B |
| 14. Kt to Q 6 |
| 15. Q to K sq |
| 16. Kt takes Q |
| 17. K takes Kt, and the position is reached. |
Black plays precisely the same moves as White, and therefore we give one set of moves only. The above seventeen moves are the fewest possible.