Single Comment

The page was not index so I'm writing the comment here:

Here's a modest variant:

immortal pawns:

Pawns promotes on the owner's last three ranks. 
Promotion required on last rank only.
Pawns promote to captured pieces only.
Pawns are return to the owner to be dropped, if captured.
Dropped pawn drops only to the first four ranks of the Pawn's owner.
Drops takes a whole turn.

Comments:

These changes are motivated by the desire to make it possible 
to resurrect any piece and have after some captures to restore 
back on the board the full 32 piece complement, and to do so with
minimal change to the rules. It seemed tweeking promotion as the 
simplest way to do that