Parlett's Movement Notation
In his book The Oxford History of Board Games David Parlett used a notation to describe fairy piece movements. The move is specified by an expression of the form m={expression}, where m stands for "move", and the expression is composed from the following elements:
- Distance (numbers, n)
- 1 – a distance of one (i.e. to adjacent square)
- 2 – a distance of two
- n – any distance in the given direction
- Direction (punctuation, X)
- * – orthogonally or diagonally (all eight possible directions)
- + – orthogonally (four possible directions)
- > – orthogonally forwards
- < – orthogonally backwards
- <> – orthogonally forwards and backwards
- = – orthogonally sideways (used here instead of Parlett's divide symbol.)
- >= – orthogonally forwards or sideways
- <= – orthogonally backwards or sideways
- X – diagonally (four possible directions)
- X> – diagonally forwards
- X< – diagonally backwards
- Grouping
- / – two orthogonal moves separated by a slash denote a hippogonal move (i.e. jumping like knights)
- & – repeated movement in the same direction, such as for hippogonal riders (i.e. the nightrider)
Read more about this topic: Fairy Chess Piece, Notations
Famous quotes containing the word movement:
“Failure or success seem to have been allotted to men by their stars. But they retain the power of wriggling, of fighting with their star or against it, and in the whole universe the only really interesting movement is this wriggle.”
—E.M. (Edward Morgan)