Chess in 40 SecondsThe Petrov Trap
White to move. Win the queen in 1.
Snort's knight just ran back to f6. Win his queen.
Hint
Your queen and his king stand on the same line. Move a piece out of the way — with a threat.
Answer
Nc6+ — Discovered check! The king must step away and the knight takes the queen.
The idea
Move one piece away and the piece behind it gives check. He must save his king — and loses the queen.
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.