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MatPlus.Net Forum General are allowed the castle(0-0) with the empress (R+N)?
 
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(1) Posted by cosme brull [Tuesday, Apr 2, 2013 17:11]

are allowed the castle(0-0) with the empress (R+N)?


Somebody knows the answer?
Tanks in advance,
Cosme Brull Mayol
 
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(2) Posted by Juraj Lörinc [Tuesday, Apr 2, 2013 17:21]

Usually (i.e. without specifically stated rule) no.
 
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(3) Posted by Joost de Heer [Tuesday, Apr 2, 2013 18:57]

Are you allowed to capture en passant with a dragon?
 
 
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(4) Posted by Kevin Begley [Wednesday, Apr 3, 2013 00:23]; edited by Kevin Begley [13-04-03]

Unless stated, the general default is to disallow special case moves (promotion, castling, en passant, etc) with fairy units having combined powers (Rook+X or Pawn+X).

You can not castle with an empress (nor amazon, nor elephant, nor queen).
You can neither capture a dragon en passant, nor capture en passant with a dragon.
You can not promote a dragon.

You can castle with a neutral Rook (where possible), because this is considered a color attribute of the unit.
Similarly, you can castle with a chameleon-Rook, an Einstein-Rook, and semi-neutral-Rook (among others), because these are sometimes considered an attribute of the unit (rather than an altered movement pattern).

FYI: The dragon seems to have a strange rule: no pawn movement from the 1st rank.
I can not say whether this is universal, but it should generally be considered a violation of the default pawn movement diagram (adding an additional idle state, to the pawn's movement diagram, is more costly).
Nevertheless, that may be how a dragon is officially defined.
 
 
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MatPlus.Net Forum General are allowed the castle(0-0) with the empress (R+N)?