14. R - R 3 R - K Kt 1
15. R - R 3 R - Kt 2
16. K - K 2 K - R 3
17. R - R 6 R - K 2
18. K - Q 3 K - Kt 2

He goes back with the King to support his K P, and thus be able to utilise his Rook. It is, however, useless, and only White's weak play later on gives him further chances of a draw.

19. P - K R 4 K - B 1
20. R - R 5

To prevent the Black Rook from controlling the open file

20. ........ K - Q 2
21. R - Kt 5 R - B 2
22. K - B 3 K - B 1

He must keep his King on that side because White threatens to march with his King to R 6 via Kt 4.

23. K - Kt 4 R - B 3
24. K - R 5 K - Kt 2
25. P - R 4 P - Q R 3
26. P - R 5 R - R 3

He can do nothing but wait for White. The text move stops White from moving his Rook, but only for one move.

27. P - Kt 4 R - B 3

The only other move was K - R 2; when White could play R - Kt 7, or even P - Kt 5.