This practically amounts to committing suicide, since it creates a hole at K 5 for White's Knight, from where it will be practically impossible to dislodge him. If Black intended to make such a move he should have done it before, when at least there would have been an object in preventing the White Knight from reaching B 5.

14. Kt - B 5 B - K 1
15. Kt - K 5

The position of White's Knights, especially the one at K 5, might be said to be ideal, and a single glance shows how they dominate the position. The question henceforth will be how is White going to derive the full benefit from such an advantageous situation, This we shall soon see.

15. ........ R - Kt 1

There is no object in this move, unless it is to be followed by Kt - Q 2. As that is not the case, he might have gone with the Rook to B 1, as he does later.

16. R - K 1 R - B 3
17. Q - B 3 R - R 3
18. Q - Kt 3 R - B 1

White threatened to win the exchange by playing either Kt - B 7 or Kt - Kt 4.

19. P - B 3 R - B 2
20. P - Q R 3 K - R 1
21. P - R 3