Comments/Ratings for a Single Item

This game looks interesting. I have a question when promotions have
happened. Say my rooks are still in play when I promote a pawn and his
doppleganger to rook, so now I have four rooks in play. If a rook is then
captured by my opponent, then what should happen?

If he must take original rook with original rook, and promoted rook and
promoted rook with promoted rook, that may require extra bookkeeping. On
the other hand, it could be any other rook, capturer's choice.

I like this last option best. It's much more simple, and a logical
extension of the pawn capture rule, which now would read 'If a player
captures a piece of which more than two are in play...'

So what is the intended ruling?

Mr. Moussambani, Great question. The answer is like that of the pawn
situation: Thus,for illustration...
Four rooks are in play. A rook is captured by the opponent.  The
opponent now removes any one the three remaining enemy rooks.(capturer's
choice).

As Mr. Moussambani stated, 'It's much more simple, and a logical
extension of the pawn capture rule...'

Another question, that might arise is: could a King ever move into check
by capturing a Rook that was protected by another Rook?  Or, for example,
take a Knight that was protected by another Knight?  Yes.  Because the
King is instantly capturing 2 pieces, thereby 'getting out of check' by
actually moving into check for an instant.  Technically the King is moving
out of check.

I happened to look over a copy of my Doppelganger Chess graphic and a
question slammed into my head.  'Has anyone ever played Doppelganger
Chess?'  The idea of a pre-set never occurred to me because the game can
be played on a regular chess board... but, if anyone played that way it
would appear only that a chess game was in progress, not a Doppelganger
Chess game.

So, to make Doppelganger Chess available for rated games and game logs, I
assigned a pre-set to it.  The following link should work until the
submission makes it into the system.  If anyone has played and has the
game score (move list)... I'd love to see it.  Thanks.  -gkg

http://play.chessvariants.org/pbm/play.php?game%3DDoppelganger+Chess%26settings%3DJPG-Alfaerie

I was wondering if one of the Editors could turn the 'Rule Enforcement'
OFF for Doppelganger Chess.  As the pre-set is now, Doppelgangers can't
be captured as it violates chess code.  

Or is there a way to get around the code?  What I need to do is play e5xf6
and also remove a pawn on g6 (the doppelganger) on the same turn.

Thanks.

If the removal of the doppleganger pawn was automatic, (not random,) like choosing the closest piece to the captured piece or choosing the closest to the left hand corner, the game wouldn't necessarily be better, but it would be easier to implement in a chess program or a chess server (you have only to make the move, and the program will take care of the rest.)

Just a thought...

I should try this game someday.

Abdul-Rahman Sibahi, Thank you for commenting.  Your idea would certainly work and I did think about it back when the game first appeared.  The way I imagined it was simple, accomplished by linking pawns: K and Q pawns, both B Pawns, both Knight Pawns, both Rook Pawns... each a Doppelganger to their 'linked' associate. Since Pawns change files from time to time, they would need an identifier to show Doppelganger relations. 

I prefer the idea of more player control which exists in the current version.    As to which is the better concept?  That probably is a matter of opinion, like comparing Chinese Chess and Korean Chess.  On that call, I am in the minority.

Your idea is certainly logical, has merit, and would prove easier for programmers.  I sort of like coming across games that computers do not yet play... but usually it is only a matter of time before they do.  

I seem to recall seeing a set of pieces with different colors at the bases.  Pawns of that design would work with your suggestion.

If you want-I will add the variant to Doppelganger and call it something like 'the Abdul-Rahman Sibahi Doppelganger Variant' and give you credit. You could modify the pawn Doppelganger aspect if desired, based on proximity.  There are several different pawn-link possibilities. Just let me know.  Or, if you'd like to create a separate page with your rules - as your variant of Doppelganger - I have no problem with that.  It would need its own pre-set to keep the ratings aspect fair. 

Thanks again, very much, for the comment.  Best regards, Gary

Abdul-Rahman Sibahi, Thank you for commenting.  Your idea would certainly work and I did think about it back when the game first appeared.  The way I imagined it was simple, accomplished by linking pawns: K and Q pawns, both B Pawns, both Knight Pawns, both Rook Pawns... each a Doppelganger to their 'linked' associate. Since Pawns change files from time to time, they would need an identifier to show Doppelganger relations. 

I prefer the idea of more player control which exists in the current version.  Note - the Doppelganger Pawns are 'not random' ... the rules state:

'If a pawn is captured, the player making the capture removes it plus any one other enemy pawn (capturer’s choice). If the removal of the second piece (or pawn) causes check to your opponent, that is fine. But you cannot capture a piece (or pawn) if removal of its counter part would put your King in check.'

As to which is the better concept (pre-determined Pawn-doppelganger or Player-selected Pawn Doppelganger), that probably is a matter of opinion, like comparing Chinese Chess and Korean Chess.  On that call, I am in the minority.

Your idea is certainly logical, has merit, and would prove easier for programmers.  I sort of like coming across games that computers do not yet play... but usually it is only a matter of time before they do.  

I seem to recall seeing a set of pieces with different colors at the bases.  Pawns of that design would work with your suggestion.

If you want-I will add the variant to Doppelganger and call it something like 'the Abdul-Rahman Sibahi Doppelganger Variant' and give you credit. You could modify the pawn Doppelganger aspect if desired, based on proximity.  There are several different pawn-link possibilities. Just let me know.  Or, if you'd like to create a separate page with your rules - as your variant of Doppelganger - I have no problem with that.  It would need its own pre-set to keep the ratings aspect fair. 

Thanks again, very much, for the comment.  Best regards, Gary