The most difficult mate in 3 on the Lichess puzzle database : r/chess

What is the hardest mate-in-3 puzzle? - Quora

mate in 3 – Daily Chess Musings

5 Hardest Mate-in-3 Ever - TheChessWorld

What is the hardest mate-in-3 puzzle? - Quora

White to move on this 2200 rated puzzle on Lichess : r/chess

Hardest mate in 3 I've ever encountered. White to play. : r/chess

The most beautiful puzzle I found on lichess, bar none. (easy) : r/chess

The most difficult mate in 3 on the Lichess puzzle database : r/chess

An ancient puzzle that is from 800AD created by Abu Na'im. White to mate in 3 : r/chess

Sam Loyd's Steinitz Gambit problem, published in 1903. White to play and mate in three. Took me an hour to solve this, but it was worth it. : r/chess

We made a Chess Puzzles App. The board is simplified so that players focus on important pieces. We're trying to enable players to memorise chess patterns faster. We're not great at chess.