What is "minishogi"

Minishogi (5五将棋 gogo shōgi "5V chess" or "5×5 chess") is a modern variant of shogi (Japanese chess). Shigenobu Kusumoto of Osaka, Japan, invented or rediscovered the game c. 1970. The rules are identical to those of standard shogi, except that it is played with a reduced number of pieces on a 5x5 board, and each player's promotion zone consists only of the rank farthest from the player.