It would be dangerous for Black to play (3) ..., Bxf3 instead of
Ktxf3. For White would continue (4) Q-h6 and the only way for
Black to prevent the disaster threatened on f6 is to give back
the piece he just won: (4) ..., Kt-e2+; (5) K-h1, Bxg2+; (6)
Kxg2, R4-g8+; (7) K-h1, R-g6; or (6) ..., Kt-f4+; (7) K- h1, Kt-
g6. In either case Black's defense is very difficult.

The play outlined in the last variation suggests a better method
for White to institute the attack in the position of Diagram 47.
This is the preparatory move (1) Q-d2. (1) Bxf6 is obviously not
as good, as Black can soon drive away the Knight d5 by P-c6,
relieving f6 of all pressure.

In answer to (1) Q-d2, which threatens (2) Bxf6, (3) Q-h6, (4)
Ktxf6 and (5) Qxh7 mate, Black has three replies, namely: Bxf3 or
Ktxf3 or P-c6.

That (1) ..., Bxf3 is not sufficient can easily be seen. White
continues (2) Bxf6, Q-d7; (3) Kt-e7+/-, and Black must give up the
Queen for the Knight as (3) ..., K-h8 would be followed by (4)
Bxg7+, (5) Q-g5+ and (6) Q-f6 mate. It is interesting to note
that it is just the one move which White is ahead in the
development that gives him the win. If he tried to checkmate
Black by (3) Q-g5, P-g6; (4) Q-h6 he would be checkmated himself
by (4) ..., Kt-e2+ followed by Bxg2+ and Q-g4+, etc.

(2) ..., Pxf6 would not be of avail either. The consequence would
be: (3) Q-h6, Kt-e2+; (4) K-h1, Bxg2+; (5) Kxg2, Kt-f4+; (6)
Ktxf4, Pxf4; (7) K-h1, K-h8; (8) R-g1, R-g8; (9) Rxg8+, Qxg8;