Duke. Piece from RennChess that steps one orthogonally then slides diagonally, or slides diagonally then steps one orthogonally.[All Comments][Add Comment or Rating]
1.Db4 check Ka1 2.Kc1 a2 3. Dc2 mate will work for a duke using only the 'Step one square orthogonally, and then slide any number of squares diagonally' rule. You can also substitute a knight for the duke.
1.Dd4 check Ka1 2.Kc1 a2 3. Dc2 mate will work for a duke using only the 'Slide any number of squares diagonally, then step one square orthogonally' rule. You can also substitute a transcendental prelate for the duke. See Tim Harding's web article: The Kibitzer #31 'Bring Back Free Castling!' for the transcendental prelate, invented by George Botterill in the 1960s.
The following endgame position leads to two different forced mates in three moves.
WHITE: King(c2), Duke(c6). BLACK: King(a2), Pawn(a3).
1.Db4 check Ka1 2.Kc1 a2 3. Dc2 mate will work for a duke using only the 'Step one square orthogonally, and then slide any number of squares diagonally' rule. You can also substitute a knight for the duke.
1.Dd4 check Ka1 2.Kc1 a2 3. Dc2 mate will work for a duke using only the 'Slide any number of squares diagonally, then step one square orthogonally' rule. You can also substitute a transcendental prelate for the duke. See Tim Harding's web article: The Kibitzer #31 'Bring Back Free Castling!' for the transcendental prelate, invented by George Botterill in the 1960s.