The zebra is a fairy chess piece that moves like a stretched knight.
[1][2] A lame zebra, which moves one step orthogonally and then two steps diagonally outwards and can be blocked by intervening pieces, appears as the elephant in janggi.
The zebra by itself is worth just below two pawns (appreciably less than a knight) due to its restricted freedom of movement on an 8×8 board.
Its long move carries the danger of causing unstoppable attacks in the opening and winning large amounts of material.
Ralph Betza opined that the zebra's move was too large to be functional on an 8×8 board and that only on a 10×10 board or larger would it be worth its ideal value of about a knight.