Sannin shogi

Sannin shōgi (三人将棋 three-person chess), or in full kokusai sannin shōgi (国際三人将棋 international three-person chess), is a three-person shogi variant invented circa 1930 by Tanigasaki Jisuke and recently revived. It is played on a hexagonal grid of border length 7 with 127 cells. Standard shogi pieces may be used, and the rules for capture, promotion, drops, etc. are mostly similar to standard shogi.

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