Epaulette mate
A queen delivers checkmate while the king is flanked on both sides by its own pieces - like epaulettes on a uniform.
Epaulette mate (named after the military shoulder decorations) occurs when a queen delivers checkmate to a king that is blocked on both sides by its own pieces, usually rooks. The king sits on the back rank with no room to move left or right, and a queen directly in front delivers the final blow.
This pattern arises most often after endgame transitions where the enemy king is trapped on the back rank with its rooks still nearby. The visual symmetry - a rook on each side of the king like shoulder pieces - makes it one of the most visually striking checkmate patterns. The lesson: a centralised king flanked by its own heavy pieces can become a prisoner rather than a protector.
Qe7# - epaulette mate, king flanked by its own rooks
The white queen on e7 delivers checkmate. The black king on e8 cannot move: d8 is occupied by its own rook, f8 is occupied by its own rook, and the queen on e7 covers d7, e7 (the queen itself), and f7. The white king on d6 protects the queen. The two rooks flank the king like epaulettes, turning it into a prisoner.
Qe7# - setting up the epaulette mate
White plays Qe7#. The black king on e8 is flanked by its own rooks on d8 and f8. The queen on e7 gives check and the king is trapped. Note that the queen must be protected or the king could take it: here the white king on e1 is too far away, so in a real game this needs to be set up carefully to ensure the queen is guarded.
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