Comments/Ratings for a Single Item

He probably got the idea from all the 'Double Chess' variants that have
popped up in the past 100 years. 

Basically, though, few of the double-wide 'real' chess games play like
chess for club-strength (Class C and Up) chessplayers. Standard Knights
play a reduced role on larger boards (for example, 7 moves to move between
end files) and standard Bishops also lose some of their lateral value.
Adding power pieces is one way to compensate (whether 3 Qs, RN, BN,
whatever) but that tends to reduce minor pieces to sacrificial fodder. Fans
of more subtle play are likely to be disappointed.

I actually like the 'mate two Kings' idea in Sirotkin's game somewhat
better, as it compensates somewhat for the stronger forces and reigns in
the value of the initiative a bit (sacs that may win one K must be balanced
against a material disadvantage in pursing the other).

Will there be a Half Board version of this game coming out soon? 
(I just like the thought of a Half Double Chess.) :-)

Tony, what you say about the added or diminished relative scopes of
the knights and bishops in double-board variants is true, just as
it is in larger variants to begin with (the knight is an extremely
weak piece in 10 by 10 variants) but the beauty of a game like my
Doublechess variant which I invented is that the knights still 
have their roles to play. Like I said before, pieces on each half
of the board tend to engage each other at the same rate they do in
regular chess. Pawns challenge each other, knights move up to the
third (or sixth rank, for black) rank to attack enemy pawns,
files open up for rooks and queens, diagonals open up for bishops
and queens. 

I think one point that needs to be made here is that in
Full Double Chess, stronger pieces are used, and that's fine,
if you are a player who likes new fangled pieces that can do neat
little tricks and jump through hoops. My Doublechess is more traditional,
uses only orthodox pieces and has the look and feel of traditional 
regular chess. So whether a game like my Doublechess or the new
Full Double Chess appeals to someone is going to be a matter of personal
taste, I guess. 

p.s. I would still like to encourage people to add comments below to
my Doublechess variant, for which I began a discussion.

Perhaps Tutti Frutti Chess could be considered a Half Board version of
Double Chess, because it uses all possible combinations of the basic pieces
on an 8x8 board.

However, Double Chess has the interesting thought of having two Kings,
which seems to be an excellent inspiration for making sense of such a wide
board.

One aspect of playability is that a set can easily be assembled from two
sets distinguishable by size by the following rules (2 commonest names
shown for non-FIDE pieces):
Pawns, Kings, Queens, all small pieces = face value;
large Rooks = Chancellor/Marshal;
large Bishops = Archbishop/Cardinal;
large Knights = Ace/Amazon.