Bulldog Chess with Witch (JohnHS - vickalan)

9. Bxc4

9...Nxc4

10. b3

10...fxg3

11. bxc4  By the way, I know that you can castle over a witch.  What if the king or rook lands on it?  Is that legal?  If so, what happens to the witch?  Also, can a witch guard its king from check?  Can it make a king transparent?

Answers to your questions:

1) Just as with other chess piece, two pieces can't be on the same square, so a king or rook can't land on the witch, even when castling.

2) A witch makes pieces transparent only to friendly pieces. So a witch blocks enemy pieces, including protecting the king from check. (but of course the witch can be captured).

3) A witch makes all pieces transparent, including the king, and the witch herself is transparent, but remember - the transparency is only to your own pieces (pieces the same color as the witch).

Here's two diagrams from other threads (examples):

Martin0 made this which is now the rule for castling: It shows castling over a transparent piece is possible:

Here is an example of a witches moves, and showing how the white rook can attack the knight:

My move:

11...gxf2

Oops, messed that one up.  12. Qxf2

12...Qg8

13. Qd4

13...Wg6

14. 0-0-0

14...c5

15. Qd3

15...Qxg2

16. Gi2

16...Bc7

17. Wc3

17...Gc8

18. Rg1