TWO Bishops
Example 3
(since the Black is in the corner,White can play as follows.)1.Bd3 Kg72.bg5 Kf7 3.Bf5(Already the Black King is confined to a few squares.If the Black King,in the original position,had been in the center of the board,oraway from the last row,White should have advanced his King,and then,With the aid of his Bishops,restricted the Black Kings movements to as few sguares as possible.)Kg7 4.Kf2(Inthis ending the Black King must not only be forced into a corner,and, before a mate can be given, the White King must be brought to the sixth rank and,at the same time,in one of the last two files:in this case either,h6,g6,f7,or f8:and as h6 and g6 are the nearest squares,it is to either of these squares that the King ou ght to go.)Kf7 5.Kg3 Kg7 6.Kh4 Kf7 7.Kh5 Kg7 8.Bg6 Kg8 9.Kh6 Kf8 (White must now mark time and move one of the Bishops,so as to force the Black King to go back.)10.Bh5 Kg8 11.Be7 Kh8 (Now the white Bishop must take up a position from Which it can give check next move along the White diagonal,When the Black King moves back to g8.)12.Bg4 Kg8 13.Be6+ Kh8 14. Bf6#Now we come to two Bishops and King against King.
Here it has taken fourteen moves to force the mate
and, in any position, it should be done in under thirty.
In all endings of this kind, care must be taken not to
drift into a stalemate.
In this particular ending one should remember that the
King must not only be driven to the edge of the board,
but also into a corner. In all such endings, however, it
is immaterial whether the King is forced on to the last
rank, or to an outside file, e.g. h4 or a5, e8 or d1.
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