....questions, comments, concerns ?
Castling into Check...

FIDE rules:
3.9 The king is said to be 'in check' if it is attacked by one or more of the opponent's pieces, even if such pieces are constrained from moving to that square because they would then leave or place their own king in check. No piece can be moved that will either expose the king of the same colour to check or leave that king in check

No he didn't. You can't move into check. So therefore you can't castle into check. Pretty basic stuff, you'd think.
"Another one: a pinned piece still,counts as a support backup to a check on your king. Even though the piece is pinned, because moving it would put your opponent’s king in check, that piece supports your opponent when they put you in check."
No. That is completely wrong. Let's say White plays Qxh7 mate, because the queen is supported by a bishop. But what if that supporting bishop was pinned? you ask. Doesn't matter! Chess is a turn-based game.
- My turn: Qxh7+
- Your turn: Kxh7
- My turn: Bxh7 (your king)
- Your turn: You don't have a turn! The game ended when your king was taken.
Since it's an illegal move, and White touched his king first I guess he has to move the king and Black plays Kxa1. But since black's king has disappeared, I'd call this position pretty suspicious!

Then we’ll circle back around if you need me to explain it further...
It's not, and thanks for the offer but I don't think there's anything I can learn from you.
We can castle, if:
1. Our King is not in check
2. Our King is not in check, after castling
3. The square between the initial position and the final position (of the king) is not attacked.
4. The Rook and the King didn't move before.
Then, after we have castling, the rook can't be ataccked neither the King (obviously). In the position #1, we can't castle for two reasons: the rule doesn't allow, and we can't move our king to a square that it is atacked by a piece of the other side, even if that piece is the king. The two kings need to have one or more squares between them.

People like that don’t care to understand the idea behind things, like why they’re making a particular move. I call people like that engine monkeys. They’re just making moves because the computer engine says so. Just like a monkey...
Report me, you’re just a jealous patzer.
Simply 1.0-0-0 is an illegal move, so white would normally lose in a blitz game. But as Black only has his king, it is a draw.
What about in a standard OTB game. What's the ruling there?

another great thread by Lola. her thought provoking threads draw some great talents like pfren to discuss the subtleties of the game so often overlooked by superGMs.

I was saying if someone tried to castle it would be a draw since they would have to move their king...
Nowhere in the blitz rules does it say that I cannot castle into check. It says that I cannot castle out of check and it says that I cannot castle thru check.
Take this example: