14. R × B

Taking with the Pawn would have opened a possibility for a counter attack.

14. ........ P - Q Kt 3

He is forced to this in order to avoid the breaking up of his Queen's side Pawns. The only alternative would have been P - Q Kt 4; which on the face of it looks bad.

15. P - Kt 5 B P × P
16. P × P P - Q R 4
17. Kt - Q 5 Q - B 4
18. P - B 4

The White Knight is now a tower of strength. Behind it White will be able to prepare an attack, which will begin with P - Q 4, to drive away the Black Queen and thus leave himself free to play P - B 5. There is only one thing to take care of and that

is to prevent Black from sacrificing the Rook for the Knight and a Pawn.

18. ........ Kt - Kt 4
19. R - B 2 Kt - K 3
20. Q - B 3 R - Q 2