What's the rarest kind of checkmate?

While a couple of those moves are rare, happening zero out of 342 billion times, it seems like they would be tied with the 30% of moves never seen. Also at zero.

It's hard to say how many of those 114 billion moves never seen are checkmate, but it's probably a lot. Which is to say that all of the rare checkmates that people have suggested so far are not the rarest. Because they have happened at least once.

in order to be...its obvious that had to happen from time to time...

Honestly, to me, I think promotion to knight checkmate or pawn checkmate is the rarest.

But as we have just seen, from the video, it's not. Not even close to the rarest.

I didn't watch the video tho.

I manage to give evem 2 peon mate in a day its far far to rare..I manage to take one ..also...in last month

It is rare. so is underpromotion checkmate. And I've given 3-4 of em in a day once

resignation on first move

Castling mate

https://www.chess.com/game/live/137365389008

LOOK HERE...queen sacrifice on peon and double check mate

Hi

hi to you, too

Sorry CrypticPassage but both you and have played that mate so it's not that rare. Mine was a transposition of your game but final position identical.

what I didtn see at all..its a mate with en-passant move!

I'm wondering what "rarest" means. Is it a checkmate that has occurred only once or one that has never occurred.

I did it! https://www.chess.com/game/live/132392984887

In no particular order, here's (arguably) the top ten:

1. En Passant
2. O-O/O-O-O (I'd say O-O is rarer)
3. Double-disambiguated move
4. King move
5. Promoting to a knight
6. Double check (this one's probably debatable)
7. "Insufficient" material (that is, rare scenarios where a lone knight or bishop can do the job)
8. King and one pawn
9. Literal forced checkmate (that is, a situation checkmate is the only legal move)
10. Tournament play checkmate (players virtually always resign)