An epaulette mate is a checkmate in which the two squares on either side of the king are occupied by its own pieces, like epaulettes on a pair of shoulders, and the check comes from straight in front. The classic picture is a king on its back rank between its two rooks, mated by a queen two squares ahead of it. Every puzzle on this page ends in an epaulette mate, comes from a real game and is close to your puzzle rating.
Take a black king on e8 with its rooks on d8 and f8. Its only free squares are d7, e7 and f7. A white queen arriving on e6 attacks all three: e7 along the file, d7 and f7 along the diagonals. It also gives check along the e-file. The king cannot move sideways because its own rooks are there, and it cannot move forward because the queen covers every square in front of it.
Here is a full position. White has a king on g1, a queen on b3 and pawns on a2, b2, f2, g2 and h2. Black has a king on e8, rooks on d8 and f8, and pawns on a7, b7, g7 and h7. White plays 1.Qe6#. The queen is two squares from the king, so it needs no protection, and no black piece can capture it or step onto e7 to block.
The rooks look like defenders, yet they are exactly what makes the mate possible. With either one gone, the king would have a square to run to.
The queen two squares in front is the textbook version, but the idea is wider: a king on the edge of the board, its own pieces on the two squares beside it along that edge, and a check from straight ahead while the squares in front are covered. A rook can give the check when other pieces already cover those squares, and the king does not have to be on its first rank. A king pushed to the side of the board in an endgame, with its own pawns directly above and below it, can be mated the same way along the rank.
The epaulette mate is a close relative of the back rank mate. In both, the king's own pieces take away its squares. The difference is where they stand: in a back rank mate they are in front of the king, in an epaulette mate they are beside it.
Look for an enemy king with its own pieces directly on both sides of it. Then ask whether one of your pieces can check it head on while the squares in front are covered. A queen two squares ahead does it on its own; a rook needs help with the diagonal squares.
To defend, keep at least one square beside the king free. A king left between its own rooks on the back rank, or between two of its pawns on the edge in an endgame, is always worth a second look. Moving one of the flanking pieces, or keeping a piece that can block on the square in front, removes the danger.
The attacker's usual slip is checking from the front while one flanking square is still empty, which lets the king step aside. Another is checking from the square right in front of the king without protection, so the king takes the checking piece. The defender's mistake is thinking two rooks beside the king must be a strong defence.
Epaulette mates in puzzles are often one or two moves, which makes them good for building a quick eye for boxed-in kings. If you are stuck, the hint shows the piece first, then the move. After you solve, the full line appears beside the board. Compare them with back rank mates and, for queen mates at close range, swallow's tail mates. The checkmate patterns page links every pattern.
For mixed tactics at your level, use Puzzle Training. For speed, try Puzzle Storm, and to repeat a fixed set until it is automatic, the Woodpecker Method. Elo Maxing rates you on every tactical motif and serves the weakest next, and Pattern Drill builds practice from the patterns your own games show you miss. For solving under time pressure, read puzzle rush tips.
A checkmate where the king's own pieces stand on both squares beside it and a check from straight in front covers its remaining escape squares.
The two pieces beside the king look like epaulettes, the ornaments on the shoulders of a uniform.
In the classic version, a queen two squares in front of the king. A rook can do it too when the squares in front are already covered.
In a back rank mate the king's own pieces block the squares in front of it. In an epaulette mate they block the squares on either side.