WILD9

***** WILD9 *****   

There are two kings.  The king closest to the a-file is the one
you must checkmate to win.  If the two kings are on the same
file, the one closest to rank 1 is the king you must checkmate.

For example, if your opponent has kings on a7 and c5, you win
if you checkmate the king that is on a7.

The other king is just an ordinary piece.  It can be checked and
captured with no consequences.  The king you must mate can change
during the course of the game.

These rules imply that if king A is closest to a1 and appears to
be mated, you can perhaps escape by moving either king so that
king B becomes the closest one. But keep in mind king B must not
be in check after the move.

Castling is done as in normal chess. You lose the right to castle
if either one of your kings move.

r n b q k k n r
p p p p p p p p
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
P P P P P P P P
R N B Q K K N R

See also: wild, match