Hi, HG. You're right, it is similar to Superchess, a game I never paid any
attention to. The differences, on a first pass, are that Universal uses
only standard pawns, which I prefer to the varied pawns of Superchess,
truthfully. That was one of the main reasons I didn't pay attention to
Supe. Also Superchess allows players to choose their pieces. Universal has
3 different piece sets, roughly 25, 50, and 75 pieces in size. All these
pieces are shuffled, and the first 7 are placed randomly on the board with
the king and pawns. The players have no choice of pieces, only of piece
sets. Then, every 5 turns, you may drop the next piece in the sequence.
Apparently Carlos has not yet posted a separate game page for Universal.
However, if you scroll to the bottom of the Cetran Chess page, you will
find the necessary rules and piece list for Universal.