'Chu Shogi Western' is here presented with western style graphics. Chu shogi ('mid (sized) chess') is a board game native to Japan. It is similar to modern shogi (sometimes called Japanese chess) in its rules and game play. Its name means "mid-sized shogi", from a time when there were three sizes of shogi variants in regular use. Chu shogi seems to have been developed in the early 14th century as a derivative of dai shogi ("large shogi").

There are earlier references*, but it is not clear that they refer to the game as we now know it. With fewer pieces than dai shogi, the game was considered more exciting. It was still commonly played in Japan in the early 20th century, especially in Kyoto, but now has largely died out. It has, however, gained some adherents in the West. The main reference work in English is the Middle Shogi Manual by George Hodges.

* It was mentioned in diaries as long ago as the twelfth century.