Hi Robin,

First of all, Mike's comment about what happens when you reach
your opponent's first rank is absolutely correct. My apologies.

Having said that, you will appreciate that it would be a rare
occasion indeed when you would want to create anything but a second
Queen, given the opportunity.

Castling...
Castling is the relocation of your king and one of your castles.
It's much easier to carry out this procedure than to explain it.
Here are the rules, as best I can explain them.

You are only permitted to castle if:

1. There are no occupying pieces between the Rook (ie Castle) and

the King,
2. Neither the King nor the Rook have been moved,
3. Your King is not in check by any of your opponent's pieces.
4. Place the King on the space occupied by the King's Knight at the
start of the match and the Rook on the space occupied by the King's Bishop at the start if you are castling to the King's side of the
board

If you are castling to the Queen's side of the board you move
the King and the Queen's Castle to the Queen Knight's Initial space
and the Queen's Bishop's initial space respectively.

Whew! perhaps Mike can confirm all this. I'm doing it in my mind
because I don't have a board handy.

One important point to keep in mind. When you castle, ALWAYS pick
up and move the King first. If you move the Rook and release it
you opponent can claim, with justification, that your move was
complete at that point.

Hope this is clear,

jack