An improvement of International Draughts, to reduce drawishness. The Dame must land immediately behind the last captured piece, provided that (1) it is a Dame and (2) it's a multiple capture sequence.
A correct implementation of Scandinavian checkers, which has been misinterpreted before. The men can also capture orthogonally and the Dame can also slide orthogonally, but on dark squares only.
A light piece is first moved outside the board. From there it can be introduced at any time via an empty square. This rule change increases the opening variance greatly.