Black should have exchanged the Bishops. Now he gets a weak pawn at Q3. Before playing B-Kt2, P-B4 should be played to prevent the Knight getting from Kt3-Q4-K6.
14. BxB PxB 15. Kt-Q4 QR-Q1 16. Kt-K6 R-Q2 17. QR-Q1 Kt-B1 18. R-B2 P-QKt4 19. KR-Q2
This holds Black’s Kt at B1. White’s next move prevents the Bishop getting into action by P-B4. After depriving all the Black pieces of their mobility, White turns his attention to a determined assault on the Black King.
19. … QR-K2 20. P-QKt4 K-B2 21. P-QR3 B-R1 22. K-B2 R-R2 23. P-Kt4 P-R3 24. R-Q3 P-QR4 25. P-KR4 PxP 26. PxP R(R2)-K2
There are no prospects on the Rook’s file, and Black is restricted to keeping his pieces mutually protected. He cannot prevent White from penetrating the King’s side.
27. K-B3 R-Kt1 28. K-B4 P-Kt3 29. R-Kt3 P-Kt4ch 30. K-B3
If Black captures the pawn, he would lose it again forthwith through White’s R-R3, and the pawn at R3 would also be captured.
30. … Kt-Kt3 31. PxP RPxP 32. R-R3 R-Q2 33. K-Kt3
Diag. 127