Illegal move - what to do?

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Avatar of HeinrichMeister

Hi,

here is the game:

https://www.chess.com/daily/game/201300496

White has just castled long side. But that must not be possible because the black bishop is on f5 pointing to b1.

What to do? 

Best wishes,

Heinrich.

Avatar of de_hawkeye

king did not move through check, so it is legal

Avatar of baddogno

Uh no, but don't worry; it's a common enough misperception.  It's only the K that can't move through check.  Perfectly legal for the rook to move.  Let me see if I can find an article...

Avatar of HeinrichMeister

https://en.wikipedia.org/wiki/Castling

Rule no5: The king does not pass through a square that is attacked by an enemy piece.[4]

Avatar of baddogno

However, in order to castle, the following conditions must be met:

  • it must be that king's very first move
  • it must be that rook's very first move
  • there cannot be any pieces between the king and rook to move
  • the king may not be in check or pass through check
Avatar of HeinrichMeister

baddogno - take a look on the wikipedia entry I've posted above

Avatar of pfren
HeinrichMeister έγραψε:

baddogno - take a look on the wikipedia entry I've posted above

White's king does not pass through b1. The rook does, but this is perfectly legal.

Avatar of daxypoo
Bf5 doesnt “occupy” b1 (though it’s influence would affect the king if it were relevant with castling)

Ra1 can pass freely
Avatar of HeinrichMeister

www.fide.com/fide/handbook.html?id=208&view=article

There is: 

3.8.2.2 Castling is prevented temporarily:
3.8.2.2.1 if the square on which the king stands, or the square which it must cross, or the square which it is to occupy, is attacked by one or more of the opponent's pieces, or

 

"The square which it must cross" is attacked by the bishop.

 

Avatar of HeinrichMeister

Aaaah, I gave the answer to myself... :-))))

the king never cross b1 ... :-)

Everything is fine, thanks for your help!!!

Avatar of baddogno
HeinrichMeister wrote:

www.fide.com/fide/handbook.html?id=208&view=article

There is: 

3.8.2.2 Castling is prevented temporarily: 3.8.2.2.1 if the square on which the king stands, or the square which it must cross, or the square which it is to occupy, is attacked by one or more of the opponent's pieces, or

 

"The square which it must cross" is attacked by the bishop.

 

No worries mate, but for a few minutes there I thought you were having us on...LOL

Avatar of daxypoo
gandalf showed up at the wrong bridge to halt the balrog
Avatar of HeinrichMeister

:-D :-D :-D made my day

Avatar of DjVortex

Wait until you encounter en passant for the first time.