NW cannot force mate. It cannot even achieve help mate, as it is a color alternator.
The can-mate property contributes only very little to the piece value. Of course not being able to check is a far larger handicap than not being able to force checkmate; it also means that in a K+X vs K with many Pawns present it would not be able to protect its own Pawns from attack by the enemy King.
NW cannot force mate. It cannot even achieve help mate, as it is a color alternator.
The can-mate property contributes only very little to the piece value. Of course not being able to check is a far larger handicap than not being able to force checkmate; it also means that in a K+X vs K with many Pawns present it would not be able to protect its own Pawns from attack by the enemy King.