After (1) B-e5, K-c8; (2) K-b6, K-d7; (3) Kt-f4 Black's King is
confined to the seventh and eighth ranks and it is only a
question of time when he will be forced to h8.

+---------------------------------------+
8 | | #K | | | | | | |
|---------------------------------------|
7 | | | | | | | | |
|---------------------------------------|
6 | ^K | | | | | | | |
|---------------------------------------|
5 | | | | ^Kt| | | | |
|---------------------------------------|
4 | | | | | | | | |
|---------------------------------------|
3 | | | ^B | | | | | |
|---------------------------------------|
2 | | | | | | | | |
|---------------------------------------|
1 | | | | | | | | |
---------------------------------------
a b c d e f g h

DIAGRAM 12.

White's Bishop being only capable of commanding black squares the
Knight will have to be used to drive the King from white squares.
For instance: K-c8; (4) K-c6, K-d8; (5) Kt-g6, K-c8; (6) Kt-e7,
K-d8; (7) K-d6, K-e8; (8) K-e6, K-d8; (9) B-h2. A waiting move.
White wants to place the Bishop on c7 so as to make d8