Shogi (将棋, shōgi), also known as Japanese chess or the Game of Generals, is a two-player strategy board game native to Japan. In the same family as chess, makruk, shatranj, janggi and xiangqi, it is the most popular chess variant in Japan. Shōgi means general's (shō 将) board game (gi 棋).
Shogi was the earliest chess variant to allow captured pieces to be returned to the board by the capturing player. This drop rule is speculated to have been invented in the 15th century and possibly connected to the practice of 15th century mercenaries switching loyalties when captured instead of being killed.
Shogi players are expected to follow etiquette in addition to rules explicitly described. Commonly accepted etiquette include following:
- greetings to the opponent both before and after the game
- avoiding disruptive actions both during the game and after, for instance:
- a) not changing the move once realized on the board
- b) fair withdrawal without any disruption, such as scattering pieces on the board to demonstrate frustration
- announcing one's resignation