Mate in 15. Perfect chess puzzle : r/chess

I got this terrible puzzle as 2nd puzzle in survival. In no world is finding the best move sub 200 elo. : r/chess

9 delightfully nerdy chess terms you need to know

Astounding defense by Carlsen! The World #1 managed to bounce back (and draw) from a troublesome position! Replay his #ETCC2023 game against Valentin, By lichess.org

This position reminds me of puzzles i have seen in some advanced

Caturanga's Chess Lock (a puzzle) : r/DnDBehindTheScreen

Reddit - Dive into anything

Mate in 2. White to move. A tricky puzzle composition! : r/chess

This was rated as a 2800 level puzzle on chess.com, but isn't the move a little too obvious to be a grandmaster level puzzle? Am I missing something? : r/chess

Because of seeing many similar positions on this subreddit, I didn

Lichess puzzle ratings are completely puzzling. For example this is rated 1813. I would expect a complete novice to solve this. Whereas I've seen mate in 6 with brilliant moves being rated