Board Wargames Codexery

Gunjin Shōgi

Japanese military board game with hidden pieces and flag capture.

Gunjin Shōgi, also known as Japanese Military Chess or Marching Chess, is a two-player board game intended for children. It features pentagonal pieces shaped like those of Shōgi, but the objective is to capture the opponent's flag, making it similar in gameplay to Stratego and its antecedent L'Attaque. The game is one of imperfect information, where the placement of the opponent's pieces is hidden initially and must be determined by deduction.

field
Board game
known_for
Two-player war game with hidden pieces and flag capture
earliest_known_sale
1895
first_reported_in_germany
1905

Lore & Background

Gunjin Shōgi has been sold and played since as early as 1895, though its inventor and exact origin are unknown. Dr. Christian Junghans reported the game in Monatshefte magazine in Germany in 1905. After reading his article, Julie Berg took out a patent on a war game in London and Paris in 1907. Similarly, Hermance Edan patented L'Attaque in 1909 and sold it in 1910; game historian Michel Boutin asserts Edan was influenced by Gunjin Shōgi, though papers from Edan's estate indicate she invented her game in the 1880s. L'Attaque later influenced Stratego, developed by Jacques Johan Mogendorff in the 1940s.

Reader's Guide

Gunjin Shōgi is significant as an early example of a hidden-information war game, predating and potentially influencing the development of L'Attaque and Stratego. The game features a hierarchy of pieces based on military ranks, mines, engineers, a spy that can defeat the general, and a flag that must be captured. Multiple versions exist, with 23-, 25-, and 31-piece variants, the latter influenced by World War I technology and the 25-piece version by World War II technology. The game requires a referee to resolve battles, as pieces remain face-down throughout. Its legacy includes numerous video game implementations, particularly in Japan, and a western release as part of Ultimate Mind Games for PlayStation 2. The uncertainty surrounding its influence on L'Attaque and Stratego highlights the complex history of game design in the early 20th century.

Did You Know?

Frequently Asked Questions

What is Gunjin Shōgi?

Gunjin Shōgi, sometimes called Japanese Military Chess or Marching Chess, is a two-player strategy board game designed for younger players. It uses pentagonal tokens modeled after traditional Shōgi pieces and centers on a hidden-information mechanic where each player must deduce the opponent's setup through play.

How do you win Gunjin Shōgi?

Victory comes down to capturing the opposing flag piece, which is why the game is often compared to Stratego and its predecessor L'Attaque. Because the starting arrangement of your opponent's pieces is concealed, much of the challenge lies in piecing together their layout through captures and positional clues.

When did Gunjin Shōgi first appear?

The earliest documented sale of the game dates back to 1895, making it one of the older examples of hidden-information war games. It was first reported in German-language sources around 1905, suggesting it had already crossed into European awareness by that point.

Why is Gunjin Shōgi significant in board-game history?

It sits in the same lineage as Stratego and L'Attaque, illustrating how the flag-capture, hidden-placement concept spread across cultures before the modern era. Its Shōgi-inspired piece shapes also make it a notable bridge between Japanese and European board-game traditions.

What makes Gunjin Shōgi different from a standard Shōgi game?

Despite borrowing the pentagonal piece silhouettes of Shōgi, the gameplay is fundamentally a deduction-based war game rather than an open-information contest. There is no concept of promoted pieces or a single king to checkmate; instead, both players race to locate and seize the hidden flag.

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