Capablanca's Chess

Chess variant

Chess variant on a 10x8 board with two fairy chess pieces: the chancellor (rook-knight compound) and the archbishop (bishop-knight compound).

Otherwise the rules of chess apply, with the following differences:

Pawns can promote to any piece in this game (except king and pawn).
Castling: the king moves three squares, and the rook moves two or three squares, depending on the side (see diagram below).

J. R. Capablanca world chess champion, 1920s^[wiki]