Definitions for "Smothered mate"
Keywords:  checkmate, knight, mate, king, unable
Checkmate given when movement of the king is completely obstructed by his own men. This can only occur when an opponent moves a knight into a position to give a check to the king.
A form of checkmate with a Knight where the King is unable to move because all the squares around him are occupied by Chessmen.
A CHECKMATE in which the squares around the King are occupied by friendly pieces. With a Black King on h8, Black Pawns on g7 and h7 and a Black Rook on g8, a White Knight on f8 would give SMOTHERED MATE.