Okisaki shogi is a modern variant

Shogi variant

Many variants of shogi have been developed over the centuries, ranging from some of the largest chess-type games ever played to some of the smallest...

 of shogi

Shogi

, also known as Japanese chess, is a two-player board game in the same family as Western chess, chaturanga, and Chinese Xiangqi, and is the most popular of a family of chess variants native to Japan...

(Japanese chess). It was developed by Masayuki Nakayachi c. 1996 from suggestions by German chess player Ralph Blockhaus.

Okisaki shogi is similar to standard shogi, but is played on a 10×10 board. There are ten pawns and a queen, which moves like a queen in Western chess. The knights also move as in Western chess. Pieces alternately promote and demote with each move, and the promotion values are differ from those of standard shogi.

Objective

The objective of the game is to capture your opponent's king and crown prince (if present), or all other pieces.

Game equipment

Each player has a set of 22 wedge-shaped pieces: those of standard shogi plus a queen and an extra pawn. The queen is placed to the immediate left of the king.

Moves

Piece moves are as in standard shogi, apart from the queen (妃将 or 妃 hishō or okisaki "princess") and the knights (跳馬 or 跳 chōma), which move as in Western chess, and the lance, which can move directly forward or backwards (standard shogi knights and lances can only move forward.)

Because they can back out, the standard requirements for promoting knights and lances in the final ranks, and restrictions on dropping them there, do not apply to okisaki shogi. Limits on pawn drops are as in standard shogi.