25. Kt-B6 RxP 26. RxR QxR 27. B-Kt1
Q-R4 would have been answered by K-Kt2.
27. … Kt-B3
Black must try to bring back his minor pieces for the defence. If he succeeds in doing that in time, the end-game is easily won on the Queen’s side.
28. B-B5 R-Q1
Not PxB because of Q-R6.
29. P-KR4
White’s attacking resources seem inexhaustible. By exchanging Queens he could have got his pawn back in this way: 29. B-Q7, Q- B1 (R xB?, 30. Q-R6); 30. BxKt, BxB; 31. QxQP, Q-Q3; 32. Kt- Q7,QxQ; 33. KtxQ, B-K1; 34. KtxQBP. But even then Black would maintain a superiority in the end-game owing to the freedom of his passed pawn, and because he can post his Rook at the seventh after P-QKt4. This explains why Marshall prefers not to win back his pawn, but to enter upon a violent attack with a doubtful issue. However, Capablanca finds the right move in all the ensuing complications, and finally wins the game.
Diag. 152