Legal & Illegal Moves | Chess

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Hi, this is David Sullivan for Chess NYC. I want to talk about legal and illegal moves. Here we have a very basic position, mating position, each side has a king, 3 pawns, and a rook, and it's white's turn to move. White can bring the rook all the way down to the C8 square and say check to black, and this is checkmate. The rook is saying check to the king. The king who goes one square at a time can't move to a place where the rook cannot still get at it. Nobody can block and nobody can capture the checking piece, but often when I'm working with young people they're not totally clear about how pieces move, so when they give an answer like rook C8 I might say, "Well, can't the rook just capture your rook?"

Then I wait to see who is alert and hopefully someone will notice that a rook does not move on the diagonal, so this rook is not allowed to capture that rook. That's breaking the rules. I might say, "Well, okay if my rook can't take my rook can't I just bring my pawn back here like this to block the check?" Then I'm waiting for the child to notice or remember that pawns cannot more backwards so this would be another illegal move. Then last but not least I might say, "If you give me this check maybe I can bring this rook back here and block the check." If the rook comes back and blocks the check you're also breaking another rule. What rule is that? Rooks are not allow to jump. Perhaps I might also have thrown in, "Can't my king take the rook?" That of course breaks another rule, kings are only allowed to move 1 square at a time. Rook to C8 is checkmate. Black cannot make any illegal moves, game over.

[gek]

Her: I only like bad boys

Me: "Illegal chess moves"

[AvilaVA]

This was EXTREMELY basic chess, I was expecting something for higher level

[HeartlessGorre]

you forgot the one where they try to take their own pawn to save the king

[nuaso]

Another illegal move is when you use three different video angels to view the chess board ....

[clemente]

The king should just castle the opponent's rook ;)

[clashclans]

1minute 57 seconds wasted from my life

[kdwaynec]

1-Moving the king into check.
2-Moving the chess pieces different from their property.
3-Castling the king in check, through a check, or into check.
4-Touching the piece but moving a different piece.
5-Using two hands for castling, capturing, or pawn promotion.
6-Making a different move instead of taking the king out of check.
7-Moving the piece with one hand and pressing the clock with another.

[MrRarathegreat]

I see my students making illegal moves all the time so i see how this can be helpful

[tomobedlam]

I think this video was meant only for the newbies to Chess. Good job getting the information out there. During play, I've seen many newbies try to perform the same similar moves that he showed were illegal. many people believe it is played very similar to Checkers. It never hurts for newbies to learn if they're looking for answers on YouTube regarding Chess.

[orel]

Grandmaster: Checkmate.

Random 8 year-old he played against: *Hold my illegal book of illegal chess moves*

[davidpambianchi]

Can anyone help with a rule:
Situation:
During a Blitz game with both opponents down to a few seconds, a player says he is going to pause the clock (and does so) to find the Queen as he promotes a Pawn, but before replacing the Pawn with the Queen in hand, he realizes his king is in Check.
A. Does he lose for pausing the clock while in Check?
B. Does he get to take back the move as he is not allowed to make an illegal move?
C. Does he get to take back the move, but there is some sort of penalty and his opponent gets extra time added to his clock?
D. Something else?

[shaunmccambridge]

I've been wondering why I keep getting DQ at chess .. a rook can't go diagonal.. who would have known. Thank God I watched this expert. It's the little expert tips like this that make you Alpha when it comes to mating positions

[Michael-rxff]

Stop giving him flack. This video is for beginners.

[brandon.karnes]

What brand/size/weight are the chess pieces that you use in this videos and where do I buy a set?

[LeaderLiquid]

Question:
- if in f7 would have been a black Rook, would this sequence be possible in order to stop the checkmate: black Rook moves to f8... and then? White Rook eats the black Rook --> can then the black King take the white Rook or is it illegal?

[overpowered]

What about en passent? btw, never play that move against a beginner

[saunadive]

I need to find a loop hole in these rules xD

[ALTSINC]

Sometimes I predict the king's next placement and I "check" that spot, but then boom draw, remis.. illegale move. I play on the Play Magnus app, a bot

[MultiCenationFan]

Rooks cannot jump and if it could jump over another piece to try and block the check then the checking piece could just jump over the piece that tries to block the check and capture the King which pieces that move diagonally, forwards and sideways cannot jump

[abirkhan]

omg!
best chess video i have ever seen...
thanks for sharing!