In Reformed Chess (variant A) a pawn situated on the sixth rank can change place with an enemy pawn standing before it. So, if a pawn, well into enemy territory, has already passed beyond the fifth rank and can move forwards to a square occupied by an enemy pawn, then the two pawns can change place. Otherwise regular rules apply.

Although the pawn, in a sense, is stronger, it is also more vulnerable, while it has lost some of its blocking capability. It's now more rewarding to expand your territory, and it can be dangerous to play too passively with your pawns. Endgames are more likely to end in a win.

There are also two alternative variants.
Variant B : It is enough if a pawn has reached the enemy side (the fifth rank) for it to change place with an enemy pawn standing before it.
Variant C : A pawn that has reached the seventh rank can change place with an enemy piece standing before it, except the enemy king.

Reformed Chess is intended to solve the problem of drawishness in chess.