Longest mate in King and Bishop versus King and Bishop endgame

Mate in 1

Also available in PGN notation.

White to move

Mate in 1 with Kb3#. Worse are Bb8, Bc7, Bd4, Bd6, Bf4, Bf6, Bg3, Bg7, Bh2, Bh8, Kb4+, Kc4+, Kd2+ and Kd4 which throw away the win.

1. Kb3#

Checkmate.

1-0

An endgame analysis by Joe Leslie-Hurd on 16 February 2005.