To prevent Kt - K 2; which would be answered by Kt × P, or still better by B - R 3. The move, however, is strategically wrong, since by bringing his pieces to the Queen's side, White loses any chance he might have of making a determined attack on the King's side before Black is thoroughly prepared for it.
| 15. ........ | P - K Kt 3 | |
| 16. P - B 4 | K - Kt 2 | |
| 17. B - K 3 |
Better would have been P - Q R 4, in order to play B - R 3. The White B would be much better posted on the open diagonal than here, where it acts purely on the defensive.
| 17. ........ | Kt - K 2 | |
| 18. B - B 2 | Kt - Q 4 |
This Knight completely paralyses the attack, as it dominates the whole situation, and there is no way to dislodge it. Behind it Black can quietly develop his pieces. The game can now be said to be won for Black strategically.
| 19. R - Q 3 | B - Q 2 | |
| 20. Kt - Q 4 | Q R - Q B 1 | |
| 21. R - Kt 3 | K - R 2 | |
| 22. P - K R 4 | K R - Kt 1 | |
| 23. P - R 5 | Q - Kt 5 |
In order to pin the Knight and be ready to come back to either K 2 or B 1. Also to prevent Q R - Kt 1. In reality nearly all these precautions are unnecessary, since White's attack amounts to nothing. Probably Black should have left aside all these considerations, and played Q - R 5 now, in order to follow it up with P - B 4, as he did later, but under less favourable circumstances.
| 24. R - R 3 |
