The named checkmates, one page each
About a dozen mating shapes recur often enough that players gave them names. Knowing the name is worth nothing. Knowing the shape on sight is worth a great deal, and the only way to get it is to see the shape a lot.
- 13 patterns
- 291 verified positions
- Every line checked by the app’s own engine
- Free, no account needed
Every page here does the same three things. It says which pieces make the pattern and where they have to stand. It lists the geometric facts that hold in every single position of that pattern in this course, with the count, because a claim about a mating pattern is either measurable or it is decoration. And it gives you real positions to solve, with the finished mate drawn out afterwards and a square-by-square account of why the king has nowhere to go.
Nothing on these pages was written from memory. The lines come from the same puzzle bank the course runs on, replayed through the rules engine the lessons use; a position is only called mate because the engine says it is.
Every pattern
- Anastasia's MateKnight and rook, king on the edge file · 33 positions
- Arabian MateRook and knight against a cornered king · 20 positions
- Boden's MateTwo bishops on crossing diagonals · 16 positions
- Opera MateBack-rank rook with a bishop defending it · 103 positions
- Pillsbury's MateRook down the file, bishop on the long diagonal · 19 positions
- Morphy's MateBishop checks the corner, rook seals it · 11 positions
- Epaulette MateThe king's own pieces either side of it · 24 positions
- Dovetail MateQueen diagonally adjacent, king boxed by its own · 15 positions
- Swallowtail MateQueen in front, own pieces diagonally behind · 16 positions
- Hook MateRook, knight and pawn in a chain · 11 positions
- Kill Box MateRook adjacent, queen a knight's move away · 11 positions
- Corner MateKnight gives the check, a rook covers the rest · 7 positions
- Double Bishop MateTwo bishops on neighbouring diagonals · 5 positions
What is not here
Two of the big ones have their own pages elsewhere on the site, because they are large enough to deserve them: the smothered mate and the back rank mate. Legal's mate is missing because the puzzle bank contains no positions tagged with it, and a page with no positions on it would be the definition page this set exists to improve on.
The rest of the library
Named mates as a single course page, or every motif in the course, one page each.