In this, actually, we're going to carry on looking at the legality or not of counting on either side
of the board.
Now, let's imagine let's just imagine that the opponents place this as we move on up here and they
play this and we move our group back.
And they can also now tell me, do you think white can cancel hair on the queen side?
The king's not posing for a check, is it?
We can't because we moved the book previously, if you remember, we moved the rook and we moved it
back.
We can't do this.
This is illegal.
And believe me, I programmed the chess rules on chess.
So these chess rules.
Yeah, there's a little program involved.
You have to keep track.
If the rooks moved, if the rooks moved on that side of the board, you can't control that side of the
board.
If the walls move on this side of the boat, you can't cross on that side of the board.
So here's another example.
Let's say we play age for play age five.
We play ball games to.
They kind of coincide, we play with each one, they play this, can we call Kingside?
I hope your your your answer is no, no, because we've moved the rook with my drug.
We can't just move right back and expect to be able to console that side of the board.
So when you're playing casually in the real world, you have to enforce these rules with your opponents.
But when you're playing online, usually it's enforced by the chess software.
It would just stop you from doing that move.
So sometimes people lose track if they move the right before software keeps track of that won't let
you Castle.
And this is a brand new site full of bugs in the software.
That's a different story.
OK, so if the works both Previously on that particular side of the ball, then you can't cancel that
side of the board.
And also, let's extend this now with another role.
So say we move on to a two day council, we move rocking back and they play this sake of argument.
Can we cancel anywhere?
Can we consequence?
Are look.
Well, we can't.
KOSAK, Queensland on two accounts.
I will be moving through check.
And B, we've already moved our king anyway.
So actually on two counts, it's illegal and we can't cancel Kingside either.
We can't cancel Kingsly that we've just moved our king and moved it back.
We can't cancel now.
We've we are said to have lost our castling rights, we've forfeited our rights and sometimes Plasencia
has played some very exciting gambits and sacrifice to get the opponent to move their king before castling,
to remove the opponent's right to counsel.
So cancelling is generally a right, but it can be forfeited in general if you've moved one of the risks
involved in casting on that particular side of the board queen side, Kingside, or you've moved the
king previously.
Yes, and this stuff is hard to program.
If you ever get into programming for chess, it's hard to program to keep track of.
So anyway, so there's castling.
Some extra rules to think about.
OK, thanks so much.