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Fischer Random Chess. Play from a random setup. (8x8, Cells: 64) (Recognized!)[All Comments] [Add Comment or Rating]
Jose Carrillo wrote on Sat, Nov 27, 2010 04:16 AM UTC:
Agree with H.G.

Castling makes both positions different, and no symmetrical.

For instance, g-castling (O-O):

In 'B B R K R N N Q' g-castling is accomplished by the King jumping 3 squares, and the Rook moving once.

In 'Q N N R K R B B' g-castling is accomplished by just having the King jump over the f-rook, while the rook stays on the same spot.

Also, b-castling in one of the positions is not equivalent to g-castling on the other.

There is no symmetry because of castling.