Outside puzzles I've never underpromoted.
Post your best UNDERPROMOTIONS

cat litter box for furniture is my underpromoted.
Lol, that position was so weird! Goes against the rules of building up pieces to checkmate the opponent! Here, just a single promoted knight does the job!
Maybe this position can well become the weirdest checkmate position of the month?

I've just lost a game due to an underpromotion, saw it after playing and my opponent found it, first time ive ever seen an underpromotion being the best move in an actual game
Was so mind blown by it that I didn't even remembered my bishop was covering the square and ended up in a lost endgame x)
Nice find by your opponent, always look for that sort of move, I think because I've made so many underpromotions, it has become instinctive, but underpromotions still have a surprise effect. (Although here it was not the only winning move, promoting to queen was BAD!!!) Also, how much time did he take here?

It's so sad that autoqueen is so popular, underpromotion is one of my favorite chess tactics. As an Albin countergambit specialist, I get more than my fair share of opportunities to underpromote. Still I have gotten occasional underpromotions outside that trap, possibly the most aesthetic of which is shown here.
Wondering if anyone else here has had some nice underpromotions? If so, post them here!
wow...
https://www.chess.com/analysis/game/live/43552140622
Kinda mean, but meh
Yeah, any move won there but underpromotion checkmate is always fun.
It's so sad that autoqueen is so popular, underpromotion is one of my favorite chess tactics. As an Albin countergambit specialist, I get more than my fair share of opportunities to underpromote. Still I have gotten occasional underpromotions outside that trap, possibly the most aesthetic of which is shown here.
Wondering if anyone else here has had some nice underpromotions? If so, post them here!