Gufuu shogi

Gufuu shogi (颶風 gufuu "hurricane"), is a modern variant of shogi (Japanese chess). It is not Japanese, having been invented in 1998-2001 by Georg Dunkel of Finland, and it incorporates elements of Unashogi by starting with an empty board. It also incorporates the concept of shared pieces, pieces controlled by both players on their respective turns.

Rules of the game

Objective

The objective of the game is to capture your opponent's king.

Game equipment

Two players, Black and White (or 先手 sente and 後手 gote), play on a board ruled into a grid of 3 ranks (rows) by 2 files (columns). The squares are undifferentiated by markings or color.

Each player has a king, distinguished by color (black and white). There are two additional pieces which are of neutral color: the Kaze (風 "wind") and Arashi (嵐 "storm").

Gufuu Shogi is played on a 2x3 board with four pieces.

Setup

The board, 3×2, starts out empty. The kings are dropped first, followed by the Kaze by Black, and the Arashi by White.

Gameplay

The Kaze and Arashi are shared pieces, and as such, belong to Black on Black's turn and White on White's turn. The same rule relates also to pieces in hand. The only exception is when either general is delivering check, in which case they (at that turn) belong to the player delivering check, and cannot be moved by the opponent in check. It is also not permissible to capture the checking piece with the king (but it is permissible to capture the checking piece with the other shared piece). The kings may move next to each other, but may not directly face each other.

The Kaze and Arashi only deliver check when they are in "contact" with the checking player's king (the checking king is in the checking piece's movement zone too).

Movement and capture

Notation
֎	Steps to an adjacent square and then rotates 90 degrees clockwise
?	Rotates 90 degrees clockwise without moving

King (reigning)		King (challenging)
Step and rotation: The king can step one square in any direction, orthogonal or diagonal, then rotates 90 degrees clockwise. Rotation: The king can rotate 90 degrees clockwise without moving. The king general goes to the superior player.	֎ ֎ ֎     ֎ 王 ֎     ֎ ֎ ֎	Step and rotation: The king can step one square in any direction, orthogonal or diagonal, then rotates 90 degrees clockwise. Rotation: The king can rotate 90 degrees clockwise without moving. The jeweled general goes to the inferior player.	֎ ֎ ֎     ֎ 玉 ֎     ֎ ֎ ֎
Kaze		Arashi
Step and rotation: The kaze can step one square directly forward, or diagonally backward, then rotates 90 degrees clockwise. Rotation: The kaze can rotate 90 degrees clockwise without moving.	֎         風       ֎   ֎	Step and rotation: The arashi can step one square orthogonally sideways or forward or diagonally forward, then rotates 90 degrees clockwise. Rotation: The arashi can rotate 90 degrees clockwise without moving.	֎ ֎ ֎     ֎ 嵐 ֎

See also

• Shogi variant
• Nana shogi
• Bushi shogi

External links

• http://www.kolumbus.fi/geodun/gufuu/gufuu.htm Archived 2019-12-08 at the Wayback Machine
• http://deepnikita.webs.com/gufuu-shogi Archived 2020-08-21 at the Wayback Machine

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