Intending Kt-B4 with a view to exchanging the Bishop. After that, Black’s position on White squares is weak specially on the diagonal QR7, KKt1, which was opened by Black’s fifth move, and on which the White Bishop can soon operate. The game is instructive in showing the development of that idea.
10. … B-K2 11. Kt-B4 Q-Q2 12. KtxB QxKt 13. B-Q3 P-KKt3
Black cannot prevent White’s threat of Q-K2 and B-B4.
14. Q-K2 Q-Q4
Diag. 102
15. Castles QxQPch
Black is obliging. The opening of files in the centre is favourable for White, as he can make use of his Rooks in the combined attack. Instead of the move in the text, development with Kt-B3 and Castles QR was the last, though slender, chance of saving the game.
16. B-K3 Q-Q4
If QxP, Q-B2 followed by B-Q4, B-K4, KR-K1 and QR-Q1. Black has no sufficient means of defence to oppose this massing of forces.