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Doublewide Chess. A discussion of the variant where two complete chess sets (including two Kings per side) are set up on a doublewide board. (16x8, Cells: 128) [All Comments] [Add Comment or Rating]
John Lawson wrote on Sun, Jun 8, 2003 05:02 AM UTC:Excellent ★★★★★
I have to try this game!  A couple of observations, based on logic alone:

Castling your Kings toward the center might allow the defense, in some
situations, to use alternation ('inside lines') to good effect, thus
freeing more forces for a counterattack.  All the better if this strategy
were unanticipated.

Regarding different armies, each player could use the same pair of armies,
but there is the choice of like opposite like, or like opposite unlike. 
That could become interesting if the two armies were of very different
strengths on a 16x8 board, and like was not opposite like.

Mark Thompson wrote on Sun, Jun 8, 2003 12:01 PM UTC:Good ★★★★
This is very similar to Milennium Chess, a commercial variant played on a
15x8 board with only one Rook in the middle of the lineup. I've played it
and found it good, and have communicated with the author (whose name I've
forgotten). He said he had tried 16x8 with two Rooks in the middle but
felt that the two Rooks in the center of the board were too powerful.

Re: Nightriders, it occurs to me you could also create a piece that you
might call an Asterisk, which can move as a Nightrider left and right
(that is, 2 steps along the rank and 1 step along the file, but not vice
versa), or a Rook along the files: so it would have six lines of motion.

David Short wrote on Mon, Jun 9, 2003 02:16 AM UTC:Poor ★
My invention Doublechess

http://www.chessvariants.com/large.dir/doubleboard.html

is better than this. I dislike variants with two kings. 
Chess should be single minded. Checkmate one king to win the game.
In Doublechess I replaced the second king with a third queen.
There is an imbalance with the Doublechess game you showed
(I am not quite clear on whether the game you are commenting on
in the link where you say 'for example, this' and show a link on
'this'
but the game shown in that link has an imbalance the bishops are on
the same diagonal with an enemy queen, my Doublechess all the bishops
are on diagonals with enemy bishops) also a game that is almost identical
to that one on a 15 by 8 board with one of the rooks removed and the
center rook being able to castle with either king is a commercially
marketted game called Millenium Chess and is sold by the
United States Chess Federation. It has never been published on this
site  because it is a commercially produced game.)

Anyway my Doublechess is the best 16 by 8 game around,
why try to tinker with perfection?? ;-)

gnohmon wrote on Mon, Jun 9, 2003 04:16 AM UTC:
I hadn't seen Doublechess, but it seems to me that Doublechess is not at
all like Doublewide, even though it uses the same size board. Doublewide
has the elegant setup of two normal setups side by side, so simple that I
guessed that it had probably been previously invented. Most important of
all, Doublewide has two Kings, and that's really the most interesting
part.

As for Millennium Chess, it seems to be 15x8 and its rules for the use of
two Kings are strange.

Doublewide is simply double. Mate one King the game is over. Fewest
possible rule changes.

The idea that the two Rooks together are too strong even though they are
opposed by two Rooks together is an odd idea, to say the least.
Cylindrical Chess remains popular even though it has the two Rooks
together.

You must understand also that Doublewide will lead directly to the idea
that 8x8x8 3D Chess should be played with 8 Kings, both to alleviate the
difficulty of checkmating the bare K in the late endgame and also to
shorten the average number of moves per game; and for this reason,
Doublewide is not only interesting in its own right, but it is also a
foundation for further development.

(Doublewide itself is a direct consequence of Twinkie Danger and
Chutes&Ladders, of course.)

The thing is, Doublewide is such a simple idea (I'm still sure that
eventually we'll find an exact precedent), but so interesting (the more I
thought about the game, the more I liked it).

gnohmon wrote on Mon, Jun 9, 2003 04:23 AM UTC:
'from army A when on his right-hand board, and army B when on his
left-hand'

Great idea -- but it would also work on an 8x8 board!

What will you name your new game?

gnohmon wrote on Mon, Jun 9, 2003 04:27 AM UTC:
'in the case where the pieces are obviously better on one of the boards,
a
mating race.'

Of course, the Kings will take shelter on the side where the pieces are
weaker.

Suppose that the left is Tripunch and the right is Shatranj; with Kings on
the right, you can use the weak Shatranj pieces to shelter them from the
grim Reapers and grimmer Combine. Kings on the left may tie down valuable
pieces in defensive roles.

gnohmon wrote on Mon, Jun 9, 2003 04:33 AM UTC:
'Castling your Kings toward the center might'

This might work sometimes, but it should be very fragile. The closer
together the Kings are, the easier it is to get a King fork. However,
putting all eggs in one basket may, as you suggest, permit one to make a
stronger defense with fewer pieces than would be needed to guard the two
widely-separated King sites.

gnohmon wrote on Mon, Jun 9, 2003 04:39 AM UTC:
Excellent editor Peter Aronson seems to have found a direct precedent

'in the link where you say 'for example, this'' -- I didn't say it.
Peter did.

The link points to a game that somebody contributed to Zillions and the
game seems to be what I called Doublewide Chess. I didn't notice this at
first since I was reading a comment about double chess and I saw a link to
double chess....

Peter Aronson wrote on Mon, Jun 9, 2003 06:03 AM UTC:
Actually Dan Troyka had pointed out the existence of the existing Zillions implementation in a comment on <u>More Shift Square Chess</u>. <strong>I</strong> merely attached it the appropriate place in the text.

Robert Shimmin wrote on Mon, Jun 9, 2003 11:57 AM UTC:
The oldest '2 kings, mate either to win' variant I know of is a V.R. Parton creation whose back line is RNBQKKQBNR, with the usual line of pawns in front of that. I don't recall whether it was played on a 10x10 or an 8x10 board.

John Lawson wrote on Mon, Jun 9, 2003 12:59 PM UTC:
There was something like this in Verney's 'Chess Eccentricities', but I remember it as a four player game, and cannot remember if only one King needed to be mated, or both, since I haven't seen the book in over 30 years.

Tony Quintanilla wrote on Mon, Jun 9, 2003 05:40 PM UTC:Excellent ★★★★★
Excellent idea. The strategic issues regarding where to commit one's pieces will be more significant. Regional battles will be more common. Mobility will be more important. I also like Mike Howe's suggestion about different army powers depending on the board--this harmonizes nicely with the double-board theme. The doublewide idea can be applied to many Chess variants. How about double-wide Rococo, for example! Triple-wide? could be interesting, but the game might devolve into a central battle with reserves on the wings.

John Lawson wrote on Tue, Jun 10, 2003 03:32 AM UTC:
As long as we're combining variants, how about Doublewide Optima-Abecedarian Big Slanted Sideways Escalator Chess? 10.5 x 21 square board, and more different pieces than stars in the sky!

Ben Good wrote on Tue, Jun 10, 2003 05:28 AM UTC:
i will be impressed when somebody invents 'doublewide tai shogi'

David Short wrote on Wed, Jun 11, 2003 10:42 PM UTC:
Well I intend to answer the question once and for all of which
is a better game, Doublechess or Doublewide chess, by having
zillions of games play it as a game of chess between different
armies. What is especially nice that I noticed is that when
I loaded up Doublechess on Zillions of Games and changed the
black position to what you see below, and did a test sample game
by selecting both white and black so that I could move the pieces
for both sides, I noticed that it did allow both kings to play
either O-O or O-O-O with the rooks on their sides of the board 
as you would imagine they could, while still also allowing white
to castle in the ways that the rules of Doublechess allow.
In Doublechess vs. Doublewide chess, white has an extra queen
but white also has the responsibility of capturing one of black's
kings first and then checkmating the other one to win the game,
whereas black only needs to checkmate white's lone king. I will
playtest several games and then later post the moves here.
Oh and obviously I will take the white side and let zillions 
play black. If anyone would like to volunteer to take the side
of the black pieces in an email game in the setup below
please contact me at [email protected] 



      a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p
    +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+ 
  8 |*R*|*N*|*B*|*Q*|*K*|*B*|*N*|*R*|*R*|*N*|*B*|*Q*|*K*|*B*|*N*|*R*|  8
    +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+ 
  7 |*P*|*P*|*P*|*P*|*P*|*P*|*P*|*P*|*P*|*P*|*P*|*P*|*P*|*P*|*P*|*P*|  7
    +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
  6 |   |:::|   |:::|   |:::|   |:::|   |:::|   |:::|   |:::|   |:::|  6
    +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
  5 |:::|   |:::|   |:::|   |:::|   |:::|   |:::|   |:::|   |:::|   |  5
    +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
  4 |   |:::|   |:::|   |:::|   |:::|   |:::|   |:::|   |:::|   |:::|  4
    +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
  3 |:::|   |:::|   |:::|   |:::|   |:::|   |:::|   |:::|   |:::|   |  3
    +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
  2 | P |:P:| P |:P:| P |:P:| P |:P:| P |:P:| P |:P:| P |:P:| P |:P:|  2
    +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+ 
  1 |:R:| N |:B:| Q |:R:| N |:B:| Q |:K:| B |:N:| R |:Q:| B |:N:| R |  1
    +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+ 
      a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p

Ben Good wrote on Thu, Jun 12, 2003 04:23 PM UTC:
>>>Well I intend to answer the question once and for all of which is a
better game, Doublechess or Doublewide chess, by having zillions of games
play it as a game of chess between different armies.

i don't understand what this proves.

David Short wrote on Thu, Jun 12, 2003 04:36 PM UTC:
I have a flair for being overly dramatic or to exaggerate things
sometimes.
Actually it will prove nothing. What it will achieve is to show an 
aesthetic preferrence for one side vs. the other. Which side can
co-ordinate their pieces better? So far zillions isn't doing a very
good job with the black side. I think I need a human opponent.
I'm still solicitting opponents for an email game of
Doublechess vs. Doublewide Chess. Email me at [email protected]

John Lawson wrote on Thu, Jun 12, 2003 06:43 PM UTC:
David,
I think you missed part of Ralph's point.  Doublechess is a good game and
fun to play, but I think Ralph was interested not only in the effects of
the double-size board, which applies equally to both games, but also in
the effect having two kings to defend and attack has on the play, when
losing either (not both) ends the game.
Furthermore, in any contest between equal players, I would bet on the
Doublechess army, simply because it has an extra Queen, and only only one
King to defend.

gnohmon wrote on Sun, Jun 15, 2003 03:56 AM UTC:
So many comments for such a simple game!

Yes, the point is that doubleking is interesting and doublewide is
interesting, but the combination of the two is doubly interesting. 

Doubleking is especially interesting with the wide, not square, board.

Doublewide is especially interesting when doubleking lowers the average
number of moves per game.

Jianying Ji wrote on Sun, Jun 15, 2003 06:11 AM UTC:
I don't think the 'great' simplification has too much to do with it. And the simplification is not really done at a specific point of time, but more as a process that culminated with a standardized list in the 90s. AFAIK. (the list was necessary after people start to over-simplify characters, in a kind of slang) Moreover the number of characters didn't really reduce. I think the sets produced in the 80s that I have seen is the same as gnohmon described. I think the xiangi associations in china may be able to resolve our quandries, so if any member is reading please send a link.

gnohmon wrote on Wed, Jun 18, 2003 04:18 AM UTC:
Oh, well, it was just a guess about the simplification. I guess it was a
wrong guess.

I do not claim to be good in Chinese or Japanese language, I just know
enough to read a xq book or a go book; same as I know enough russian to
read a chess book.

Why is this message in doublewide instead of in xq thread????

Back on topic, Doublewide xq would maybe be interesting with two kings
confined to two Castles; but maybe too strong for the side with
initiative?

Jianying Ji wrote on Wed, Jun 18, 2003 07:33 AM UTC:
Sorry I misposted my last message to the wrong thread.

Double wide xiangqi, ummm, interesting

Jared McComb wrote on Wed, Jun 18, 2003 03:39 PM UTC:Excellent ★★★★★
If it's impossible to do that, how did he do it in the first place?  It
must not be impossible, or at least not to Europeans.

Would someone please ZRFolize this?

--Jared

(EDIT) This should be under the Gufuushogi link!  Oops!

gnohmon wrote on Thu, Jun 19, 2003 03:13 AM UTC:
'If it's impossible to do that, how did he do it in the first place?'

What a clever new game you've invented! From now on, all comments must be
added to Doublewide, and then everybody gets to guess what game they
really belong to! But how does one win?

(Pls run over to teeny tiny shogi and give the man the 'excellent' you
accidentally dropped here.)

John Lawson wrote on Thu, Jun 19, 2003 03:49 AM UTC:
'But how does one win?'

It's like one of those 'co-operative' games where everyone wins or
loses together.

Note also, if you are registered, that you can actually edit comments you
have previously made.

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