Black Can Deliver Checkmate in 3 Moves, Can You See How?

Chess Puzzle #459 | Black to play and mate in 3. Difficulty: beginner.

What happens in Chess if an opponent makes a Check-mate move but doesn't realize it, but his opponent does? Is his opponent obligated to point that out? - Quora

3-Move Checkmate (How to Win at Chess in 3 Moves) - PPQTY

Checkmate Patterns: Must-Know Checkmates for Club Player

Scholar's Mate in Chess (The 4-Move Checkmate) - Chessable Blog

Scholar's Mate in Chess (The 4-Move Checkmate) - Chessable Blog

Checkmate in 3 moves. Black to move : r/chess

Black is in checkmate, but what was white's last move? : r/chess

How is this not a checkmate? : r/chessbeginners

Black to Move and Mate in 3 Problem

How to win Chess in 4 moves!