how do I checkmate with king

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frog5161
I was looking through achievements and I saw “killer king” and I have absolutely no idea how to checkmate like that
justbefair

Well, since a king can't give check to another king, it must mean the king moves out of the way, exposing check coming from another piece.

Kraig

As above, it'll be moving the King to reveal a checkmate.

Here's the classic example from Edward Lasker vs George Alan Thomas, 1912. The winning move in this game was "Kd2#".
https://www.chess.com/blog/SamCopeland/lasker-vs-thomas-the-perfect-king-hunt-every-move-explained-for-chess-beginners

frog5161
Thank you
Fr3nchToastCrunch

Here's another example of how to do it. My opponent messed up really bad, to say the least.

xtreme2020
#3 I actually experienced physical pain seeing an opportunity for castle mate wasted
Fr3nchToastCrunch

Unrelated: Paul Morphy actually checkmated by castling in a game once, if memory serves me right

xtreme2020
Yeah I remember seeing that somewhere