Tactical motifs

Anastasia's mate; Qxh2+ Kxh2 Rh6#. Anastasia's mate occurs when the opponent king is trapped against the edge of the board, with a rook (or less traditionally, a queen) delivering the mate on the first or last rank or file. A knight blocks two escape squares, and one of the opponent's own pieces blocks escape via the square not covered by the knight.

Arabian mate. ...Rb6+ Ka7 Kc6+ Ka8 Rb8#. The Arabian mate involves checkmating the opponent king in the corner of the board using a rook and knight. The rook delivers the mate on the edge of the board adjacent to the corner square, and the knight protects the rook and prevents the king escaping on the second empty edge square adjacent to the corner.

Balestra mate. The balestra mate is similar to Boden's mate, but involves a queen and a bishop instead of two bishops. Like Boden's mate, the queen and bishop mate the king along two intersecting diagonals. In balestra's mate the bishop delivers mate, while the queen sits one square back and to the side of the mated king, and blocks escape squares. In the balestra mate, the queen is able to block all escape squares without the help of the opponent's own pieces.