Tenjiku shogi

Tenjiku shogi (天竺将棋 tenjiku shōgi, "exotic chess" or 天竺大将棋 tenjiku dai shōgi "exotic large chess") is a large-board variant of shogi (Japanese chess). The game dates back to the 15th or 16th century and was based on the earlier chu shogi, which itself was based on dai shogi.

The objective of the game is to capture the opponent's king and, if present, the prince, which counts as a second king. Unlike standard shogi, captured pieces may not be dropped back into play by the capturing player.

Two players, Black and White (or 先手 sente and 後手 gote), play on a board composed of squares in a grid of 16 ranks (rows) by 16 files (columns) with a total of 256 squares. The squares are undifferentiated by marking or color. A pair of dots may be placed just beyond the fifth rank on each side to mark the promotion zones and aid in the initial setup of the two camps.

Each player has a set of 78 wedge-shaped pieces of 36 types. In all, the players must remember 43 moves for these pieces. The pieces are of slightly different sizes. From largest to smallest (roughly most to least powerful) they are:

Several of the English names were chosen to correspond to rough equivalents in Western chess, rather than as translations of the Japanese names.

Each piece has its name in the form of one or two kanji written on its face. On the reverse side of some pieces are two or three other characters, often in a different color such as red; this reverse side is turned up to indicate that the piece has been promoted during play. The pieces of the two sides do not differ in color, but instead each piece is shaped like a wedge, and faces forward, toward the opposing side. This shows who controls the piece during play.

Listed below are the pieces of the game and, if they promote, which pieces they promote to. Pieces marked with an *asterisk are only available with promotion.

The promotions can be summarized as series of promotion chains, as follows. Within each block below, a piece (except the kings) promotes to the piece above it. Pieces at the top of each block do not promote (and if in italics, and with an *asterisk, as stated before, these appear only upon promotion). Note that pieces may only promote once. For example, a gold general promotes to a rook, and a rook promotes to a dragon king, but a gold general promoted to a rook cannot promote a second time to a dragon king. This is clear from the equipment, for each piece only has two sides.

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Wikipedia