Black Chess Equihopper

It jumps over a piece and lands the same distance beyond it. That piece is the hurdle; it sits halfway between the start and landing squares.

In the English Equihopper convention, another unit on a square between the start and hurdle can block the move. The jump need not follow a chess queen's path: a row, column, or diagonal.

Who invented the equihopper?

Its attribution is disputed. A fairy-chess glossary credits G. Leathem and dates the English Equihopper to the August 1938 issue of Fairy Chess Review; an Argentine chess-problem reference instead credits Jesse G. Ingram.

The Nonstop Equihopper, also called the French Equihopper, cannot be blocked. Its first recorded appearance is in Chessics 2, page 3, in July 1976, under the name “Equileaper.” The Orix keeps the equal-distance hop on rows, columns, and diagonals; the Equihopper can jump in any direction.

Where would I see this piece?

In fairy-chess problems and variant diagrams. The glyph identifies the black piece, but it does not tell you which movement convention the composer intended; follow the problem's legend.