A ferz (or fers) is a fairy chess piece that moves like a bishop, but can only go one square. The ferz can move one square diagonally in any direction. In this article, the ferz is represented by an elephant.
History and nomenclature
The ferz is a very old piece, appearing in some very early chess variants, such as Tamerlane chess and shatranj. The advisor in xiangqi moves like a ferz, but has additional restrictions involving where it can move. The ferz was a standard chess piece until the modern moves of queen and bishop were developed around 1300 CE. It also appears in some large historical shogi variants, such as dai shogi, under the name cat sword (猫刄).
The piece was originally called the mantri (Sanskrit for "minister" or "counsellor"), which was translated by the Persians to farzin, which means "counsellor" or "wise man". This was shortened by the Arabs to firz, and this became ferz or fers in Medieval Europe. Its name later changed to the queen, but when that name started being used for the modern chess queen, its former name ferz or fers began to be used in chess problems. However, in Russian and Ukrainian "ferz" (ферзь) is the current name for the queen.
The ferz by itself is worth about half a knight. Three ferzes and a king can force checkmate on a bare king (assuming that all three ferzes are not on the same color); two ferzes and a king can force stalemate on a bare king, but not easily. The endgame of rook versus ferz is a win for the rook. Despite being colorbound, the ferz is the strongest of the basic leapers during the opening phase of the game, even stronger than the wazir, because it has larger mobility forward. A wazir and a ferz can only force checkmate on a bare king, if the bare king is significantly close to a corner that is the same color as the ferz. Two ferzes cannot force checkmate, whether they are on the same color or not. Two wazirs cannot force checkmate. A knight and wazir can force checkmate against a bare king, but a knight and ferz can only do so if the bare king is significantly close to a corner that is the same color as the ferz. The wazir is better than the ferz in most endgames, because of the wazir's ability to restrict squares adjacent to the squares last restricted.
- Endgame statistics with fantasy pieces at The Chess Variant Pages
- The Ferz by Ralph Betza, The Chess Variant Pages
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