Now the best continuation would be:
| 1. P - B 7 | R - Kt 3 ch (best) | |
| 2. K - B 1 | R - K B 3 | |
| 3. R - K 7 ! | K - B 4 (best) |
White threatened to check with the Rook at K 6.
| 4. K - K 2 | P - Kt 6 |
Best. If K - B 5; both P - R 4 and K - K 3 will win; the last-named move particularly would win with ease.
| 5. R - K 3 | P - Kt 7 (best) | |
| 6. R - Q Kt 3 | R × P | |
| 7. R × P | R - K R 2 | |
| 8. R - Q 2 | R × P | |
| 9. K - K 3 |
This position we have arrived at is won by White, because there are two files between the opposing King and the Pawn from which the King is cut off by the Rook, and besides, the Pawn can advance to the fourth rank before the opponent's Rook can begin to check on the file. This last condition is very important, because if, instead of the position on the diagram, the Black Rook were at K R 1, and Black had the move, he could draw by preventing the
advance of the Pawn, either through constant checks or by playing R - K B 1 at the proper time.