The hardest mate in 1 puzzle I've seen! (White to move, mate in 1

The hardest mate in 1 move Never seen before

What is the hardest mate-in-4 puzzle? - Quora

100 Headachingly Hard Mate in Two Chess Puzzles Composed by Sam Loyd: Improve Your Ability to Calculate Variations and Finding Checkmate eBook : Justesen, Martin B.: Kindle Store

How to Checkmate in 2 Moves! 21 chess puzzles

Can every 'black to move' chess puzzle be altered to an equivalent 'white to move' puzzle? If not, what are some exceptions? - Quora

Secrets of Grandpatzer Chess: Mate in Two

The hardest mate in 1 puzzle I've seen! (White to move, mate in 1) : r/AnarchyChess

What are some of the toughest chess puzzles? - Quora

White to Move and NOT Mate in 1

The most difficult mate in 3 on the chess.com puzzle database : r/AnarchyChess

Find mate in 1, white to play. (source: YT) : r/chess

The hardest mate in 1 puzzle I've seen! (White to move, mate in one) : r/AnarchyChess

What is the hardest mate-in-4 puzzle? - Quora