The grasshopper is a fairy chess piece that moves along ranks, files, and diagonals (as an ordinary queen) but only by hopping over another piece at any distance to the square immediately closest. If there is no piece to hop over, it cannot move. If the square beyond a piece is occupied by a piece of the opposite color, the grasshopper can capture that piece. The grasshopper may jump over pieces of either color; the piece being jumped over is unaffected.
|This article uses algebraic notation to describe chess moves.|
In this article the grasshopper is shown as an inverted queen with notation G. In this diagram the white grasshopper on d4 can move to the squares marked with crosses (b2, d1, d7 and h8), as well as capture the black pawn on a7. It cannot move to g4, because there are two pieces to hop over.
Other related pieces in the problemist tradition are the eagle, hamster, moose, and sparrow, which move and capture like the grasshopper but are deflected 90°, 180°, 45°, and 135° respectively (to either side) upon passing the hurdle. The compound of all four and the grasshopper itself is the marguerite.
- Dickins, Anthony (1971) [corrected repub. of 1969 2nd ed., The Q Press, Richmond, Surrey, England]. A Guide to Fairy Chess. New York: Dover Publications Inc. pp. 8, 65. ISBN 0-486-22687-5.
- Pritchard, D. B. (1994). The Encyclopedia of Chess Variants. Games & Puzzles Publications. pp. 130, 227. ISBN 0-9524142-0-1.
- Pritchard, D. B. (2007). Beasley, John, ed. The Classified Encyclopedia of Chess Variants. John Beasley. p. 144. ISBN 978-0-9555168-0-1.