H. G. Muller wrote on Sat, May 19, 2012 01:42 PM UTC:
Note that the statement that this is the smallest Shogi variant is no longer true: A variant on 3x4, called Dobutsu Shogi, is currently getting very popular. It involves 4 pieces: (Shogi)Pawn, Wazir, Ferz and King, where the first three promote to Gold on the last rank, and there is an additional win condition for the King reaching that rank. The array is wkf/1p1/1P1/FKW.