Mate in one.
Mating Traps in the Opening
Short games, long lessons
In this lesson you will learn
- Why the king is most vulnerable in the first ten moves
- The weak squares f7 and f2
- Seven classic traps, from Fool's Mate to the Kieninger Trap
- How to avoid falling into a trap yourself
Every board on this page is live. Move the pieces by tapping or dragging, click any move in the lines to see that position, and press ↺ to start again.
6.1 Why the Opening Is Dangerous
At the start of the game both kings sit in the middle of the back rank, surrounded by pieces that have not moved. That makes them easy targets for smothered mates and back-rank mates. The squares f7 and f2 are protected only by the king, and a queen and bishop can attack them in two moves.
The traps in this chapter are short, but each one teaches a pattern that appears in master games again and again. Play through each game on a board, stop at the diagram, and find the mate yourself before reading on.
6.2 Fool's Mate
1.f3 e5 2.g4 ♕h4#
Example 6.1
The position before the final blow. Black to move and mate.
The fastest mate possible. White has opened the diagonal e1–h4 with two weakening pawn moves, and the queen strikes at once. The king is boxed in by its own pieces on d1, f2 and the rest of the back rank.
6.3 Scholar's Mate
1.e4 e5 2.♗c4 ♘c6 3.♕h5 ♘f6 4.♕xf7#
Example 6.2
The position before the final blow. White to move and mate.
f7 is the weakest square in Black's camp: at the start only the king protects it. Queen and bishop aim at it together, and 3...♘f6? attacks the queen but forgets the threat. 3...♕e7 or 3...g6 would have defended.
6.4 Légal's Mate
1.e4 e5 2.♘f3 d6 3.♗c4 ♗g4 4.♘c3 g6 5.♘xe5 ♗xd1 6.♗xf7+ ♔e7 7.♘d5#
Example 6.3
The position before the final blow. White to move and mate.
Named after the French player Légal de Kermur. The knight on f3 looks pinned to the queen, but White breaks the pin and gives up the queen. Three minor pieces then mate: the bishop on f7 and the knights on e5 and d5 cover every square. Black should have played 5...dxe5, losing only a pawn.
6.5 Smothered Mate in the Caro-Kann
1.e4 c6 2.d4 d5 3.♘c3 dxe4 4.♘xe4 ♘d7 5.♕e2 ♘gf6 6.♘d6#
Example 6.4
The position before the final blow. White to move and mate.
Black has developed naturally, but the e-pawn is pinned against the king by the queen on e2. The knight jumps into d6 and nothing can take it: the e7-pawn is pinned. The king is surrounded by its own queen, bishop and pawns.
6.6 The Blackburne Shilling Trap
1.e4 e5 2.♘f3 ♘c6 3.♗c4 ♘d4 4.♘xe5 ♕g5 5.♘xf7 ♕xg2 6.♖f1 ♕xe4+ 7.♗e2 ♘f3#
Example 6.5
The position before the final blow. Black to move and mate.
Legend says the great English player Joseph Blackburne won a shilling a game with this trap. Greedy White grabs a pawn and then a rook, but the black queen and knight work together and the white king is smothered by its own bishop, rook and pawns.
6.7 The Englund Gambit Trap
1.d4 e5 2.dxe5 ♘c6 3.♘f3 ♕e7 4.♗f4 ♕b4+ 5.♗d2 ♕xb2 6.♗c3 ♗b4 7.♕d2 ♗xc3 8.♕xc3 ♕c1#
Example 6.6
The position before the final blow. Black to move and mate.
White plays naturally, trying to trap the black queen, but after the exchanges on c3 the white queen no longer covers the back rank. The king on e1 is a back-rank victim with its own knight and queen blocking d1.
6.8 The Kieninger Trap
1.d4 ♘f6 2.c4 e5 3.dxe5 ♘g4 4.♗f4 ♗b4+ 5.♘d2 ♘c6 6.♘gf3 ♕e7 7.a3 ♘gxe5 8.axb4 ♘d3#
Example 6.7
The position before the final blow. Black to move and mate.
From the Budapest Gambit. White grabs the bishop, but the knight lands on d3 with a smothered mate: the white king is wrapped in by its own queen, knight and pawns, and the e2-pawn is pinned by the queen on e7.
Remember
- In the opening the king is surrounded by its own pieces — ideal for smothered and back-rank mates.
- f7 and f2 are guarded only by the king. Watch out for queen and bishop batteries.
- A pin to the queen can be broken if the queen sacrifice leads to mate.
- Develop, castle, and always ask what your opponent threatens.
Exercises · Lesson 6
These positions come from short games that went wrong in the opening. Find the forced mate. The moves of each game are given with the solution.
Mate in one.
Mate in one.
Mate in one.
Mate in one.
Mate in one.
Mate in one.
Mate in one.
Mate in one.
Mate in one.
Mate in one.
Mate in one.
Mate in 2.
Mate in 2.
Mate in 2.
Mate in 2.
Mate in 2.
Mate in 2.
Mate in 2.
Mate in 2.
Mate in 3.
Mate in 3.