![checkmate - Can one mate a lone king with Bishop and two knights without being aided by the attacking king? - Chess Stack Exchange checkmate - Can one mate a lone king with Bishop and two knights without being aided by the attacking king? - Chess Stack Exchange](https://i.stack.imgur.com/9i2OT.png)
checkmate - Can one mate a lone king with Bishop and two knights without being aided by the attacking king? - Chess Stack Exchange
It is not possible to force a checkmate with two knights if there are only two kings left on the board (in addition to the knights). How can this statement be proved
![Classic Wooden Tournament Chess Set on Black Background. Two Knights Centre of Board Other Pieces Lined Up Stock Photo - Image of pawn, sport: 218730828 Classic Wooden Tournament Chess Set on Black Background. Two Knights Centre of Board Other Pieces Lined Up Stock Photo - Image of pawn, sport: 218730828](https://thumbs.dreamstime.com/b/classic-wooden-tournament-chess-set-black-background-two-knights-centre-board-other-pieces-lined-up-218730828.jpg)