Chu and dai shogi feature a second king: the drunk elephant may promote to a crown prince. An opponent's crown prince, in addition to his king, must be captured to win.
Chu and dai shogi also feature a very powlerful unconventional piece, the lion. The lion moves like a king, but up to twice in one move, possibly capturing on one or both of its moves.
The lion is the only piece in chu and dai shogi that may capture two pieces in one move.
Even larger shogi variants have also been introduced since chu shogi. Tai Shogi from the 15 century belo