Differences in Shogi rules and appearance : r/shogi

Chu Shogi, Part I: How to Play

Shogi Dr Eric Silverman

Rules - Japanese Game Shogi

Japanese Chess: The Game of Shogi by Trevor Leggett, Paperback

How to Play Shogi - Japanese Chess - Xiangqi - Shatranj

Shogi variant - Wikipedia

Modified/redesigned Hidetchi international pieces : r/shogi

Chu Shogi Dr Eric Silverman

Shogi and Shogi variants

Shogi Rules — An overall explanation of Japanese Chess, by Seigo Sato - Shogi player

BrainKing - Game rules (Japanese Chess)

Shogi - New World Encyclopedia