And the first question?
A few questions about castling
Pwxn,
your brother is right. You can't castle if a square the king passes by is attacked by an adversary.
You can however castle, if it's only one of the squares that your rook pass over, that's attacked.
For example, if you want to castle queenside, but there is a piece attacking b1, you can still do it. It's only the king that's not allowed to move through an attacked square.
I see. Thanks for the additional info. If you wouldn't mind, I have another question.
http://www.chess.com/forum/view/game-analysis/using-fritz-or-any-chess-analysis
1.) When are you not allowed to Castle? As far as I know, the only times you can't castle is when you are either try to castle in check or out of check. My brother said his coach told him that castling isn't allowed when a piece attacks the space between the King and the Rook. It's hard to explain. I have a picture:
2.) I'm not good at chess, but I know basic concepts in the opening stage. One of which is to castle early. I follow this of course but usually I'm caught in the situation where my King is trapped in the side and the opponent's rook/queen checkmates me. I probably made stupid moves considering this doesn't happen (or at least I haven't heard of it) to professionals. How do I avoid this? Do I move one of the three pawns before-hand in case this happens so I have an escape route? Or do I just make sure not to get trapped?