One way to win chess in four moves is Scholar's Mate: White coordinates the queen and bishop against f7 and delivers checkmate with Qxf7. It works only if Black allows the threat. There is no four-move sequence that forces a win against every legal defense from the starting position.
Learn this pattern to recognize an early mating threat on either side of the board. Relying on opponents to miss it is not a complete opening strategy.
Replay a legal four-move checkmate
This study line ends on White's fourth move:
Start
White's first move clears a diagonal for the bishop. Bc4 aims at f7, and Qh5 adds a second attack on that pawn. Black's Nf6 attacks the queen but leaves White time to capture f7 with mate.
The move numbers count White's move and Black's reply together. Here “four moves” means White plays four times; the position contains seven half-moves because Black does not get a fourth turn after being checkmated.
Read the notation guide if the piece letters, capture symbol, or checkmate marker are unfamiliar.
Why f7 is the target
At the start, Black's f7 pawn is protected only by the king. After the bishop reaches c4, it attacks f7 along c4–d5–e6–f7. The queen on h5 also attacks f7 along h5–g6–f7.
After Qxf7, the queen checks the king on e8 diagonally. Black's king cannot capture the queen because White's bishop protects it. In this exact position, there is also no safe king escape, capture by another piece, or way to block the adjacent diagonal check.
Those details establish mate in the displayed line. They do not establish that Black had to play the preceding moves.
Stop the threat instead of chasing the queen
After 1. e4 e5 2. Bc4 Nc6 3. Qh5, Black can play 3...g6. The pawn attacks the queen and blocks its route along h5–g6–f7. White cannot play Qxf7 through that pawn. White can move the queen and continue the game, but the immediate four-move mate has been stopped.
Another legal defense is 3...Qe7, which adds a defender to f7. An attempted 4. Qxf7+ can then be met by 4...Qxf7. The checking queen has been captured, so the position is not checkmate.
Try both defenses on the analysis board. Do not apply a memorized defense without checking the actual position; an early queen can threaten an undefended e5 pawn or create a different attack.
What White risks by repeating the trap
An early queen can become a target while the opponent develops. If the immediate attack is defended, White still needs to bring out the other pieces and secure the king. Moving the queen repeatedly may cost useful time.
Compare this approach with the principles in beginner opening plans. Development and king safety remain relevant even when a tactical chance appears.
Turn the pattern into practice
Replay the mate, then return to the position before Black's third move and find a defense. Explain which piece attacks f7 and which move changes that attack. Switch sides so that you learn recognition rather than just White's move order.
You can practice against the computer, but it may defend the threat. For a broader plan that does not depend on a missed trap, read how to win chess.