Chess in 40 SecondsThe Blackburne Shilling Gambit
Black to move. Mate in 1.
Snort grabbed your pawn and blocked the check with his bishop. Mate him.
Hint
White's king has no safe squares. Find a check.
Answer
Nf3# — Checkmate! Knight and queen together. White grabbed a pawn and lost the game.
The idea
Knight + queen together are deadly next to a king with no free squares.
This chess trap is one of 30 quick puzzles in the Chess in 40 Seconds trainer: find the move on the board, get a hint if you're stuck, and learn the idea so you never fall for it in your own games.