First and well... yeah

It is very unusual indeed. But I like it. Does anyone know when it was played and by whom?

second

that was fun.... and easy.

I always find it interesting when a pawn promotes to a piece other than a queen. I guess in some situations it can be useful, like the one shown in this puzzle.

Interesting

wow

good puzzle

Well titled, and very elegant.

I liked that.

1st page!

unusual... is correct

good puzzle about what to promote for the ultimate win!!!

i got it right!

.

Maybe the underpromotion gets to mate quickest, but I suspect there were alternatives.

Nice

Kf6 is also valid, no?

Super

I think you could mate in 2 moves here