(chess) A checkmate pattern in which two major pieces team up to push the enemy king to one side of the board.

(chess) A checkmate pattern in which a rook provides the checkmate to the cornered king while being protected by a knight that also covers the only would-be escape square.

Alternative form of epaulette mate

(chess) A checkmate pattern in which the losing side's king is unable to escape because its two surrounding parallel flight squares are occupied by pieces of its own color. Most commonly occurs with two rooks on the back rank.

(chess) A checkmate pattern in which a bishop "suffocates" the enemy king (by taking away its flight squares), while a knight delivers checkmate.

plural of suffocation mate

(chess) A checkmate pattern in which a queen, supported by a piece of its same color, is placed diagonally adjacent to the enemy king. The two flight squares that the queen does not control are occupied by pieces of the king's own color.

plural of mating mark

A petty officer assisting the boatswain aboard ship.

Synonym of assortative mating