P-KR3 would lead to an immediate disaster: 13. BxP, PxB; 14. QxRP, P-KB4; 15. P-KKt4. The move in the text avoids the immediate attack on the King, but the King’s Pawn is now “backward,” and White immediately fastens on this weakness.
13. BxB QxB 14. Castles KR R-B3 15. KR-K1 Kt-Q3 16. R-K2 B-Q2 17. QR-K1 R-K1 18. P-QB4 Kt-B2 19. P-Q5 KtxKt 20. RxKt P-KKt3
21. BxP was threatened.
21. Q-R4 K-Kt2 22. Q-Q4 P-B4 23. Q-B3 P-Kt3 24. PxP B-B1 25. B-K2
The Bishop now settles at Q5, and whether Black takes the pawn or not, he is paralysed either by the pawn itself, or the pin of the Bishop if the pawn is taken.
25. … BxP 26. B-B3 K-B2 27. B-Q5 Q-Q3 28. Q-K3 R-K2 29. Q-R6 K-Kt1 30. P-KR4
The deciding manœuvre, tearing up the chain of pawns in front of the K.
30. … P-QR3 31. P-R5 P-B5 32. PxP PxP 33. RxB Resigns.
After RxR, 34. RxR, RxR; 35. QxPch wins a piece. A beautifully concise game.