Illegal Position Contest!

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Ilampozhil25
n9531l1 wrote:
Ilampozhil25 wrote:
MARattigan wrote:

Your FEN says White has the move, but Black is in check(mate).

Legal if Black has the move.

black is in checkmate

But checkmate is not illegal. The checkmated side always has the move.

yes.

true.

but it was told to be check when it was actually mate.

n9531l1
Ilampozhil25 wrote:

but it was told to be check when it was actually mate.

And you can't be in checkmate without being in check, so it is certainly correct that Black is in check.

Brisingaro

 

n9531l1
Brisingaro wrote:

[#4880]

Brisingaro, thanks for posting that. Some of those reading this thread don't know that it's an illegal position. But to help them, you should explain what makes it illegal.

n9531l1

This is a study, White to play and win, G. Horning, Schach #15 153 2002. Why is the position illegal?

 

KMMCS88
n9531l1 wrote:

This is a study, White to play and win, G. Horning, Schach #15 153 2002. Why is the position illegal?

 

Black has made seven captures with Pawns, yet White's light-squared Bishop must have been captured by a piece.

charley718

 

HockeyFox7
charley718 wrote:

 

 OBVIOUSLY illegal because Black has no pieces, and White has 4 kings.

Ivan_m_chas

 

KMMCS88
Ivan_m_chas wrote:
 

 

c2

n9531l1
Ivan_m_chas wrote:

[An illegal position]

This is a better challenge than many of the positions posted here. The white bishop must be a promoted piece, since the f1 bishop was captured at home. A promotion at a8 or c8 would leave the bishop trapped, and White's c-pawn needs four captures to promote on e8 or g8. But Black is only missing three men, so the position is illegal.

(Removing a black rook wouldn't be enough to make the position legal, since White also needs a capture to remove Black's c8 bishop.)

Platypus

 

KMMCS88
chessPlatypus01 wrote:

 

What's illegal about that?

advaitpawar010

is this illegal??

advaitpawar010

even this

 

advaitpawar010

umm judges where are you??

n9531l1
advaitpawar010 wrote:

umm judges where are you??

The judges tend to ignore positions that are too obviously illegal. See if you can create a position that seems like it might be legal.

advaitpawar010
n9531l1 wrote:
advaitpawar010 wrote:

umm judges where are you??

The judges tend to ignore positions that are too obviously illegal. See if you can create a position that seems like it might be legal.

ok 

thanks for the advice tho

advaitpawar010

umm here 

n9531l1

If you want it to seem legal you should avoid giving White nine pawns.