Impossible move proposed by engine • page 1/1 • Lichess Feedback • lichess.org

Hi,
I created a study to show the problem. It's name is "fatal error"
On move 6 for black, pls look at what the machine proposes via the arrow....an impossible move.
Kind Regards

Hi, I created a study to show the problem. It's name is "fatal error" On move 6 for black, pls look at what the machine proposes via the arrow....an impossible move. Kind Regards

glbert

#2

you provided a fen or initial position that says that black can castle kingside. so basically, you told the engine that this impossible move is possible. that's not the engine's fault.

Cedur216

#3

https://lichess.org/@/throwing_axe due to chess960, you can attribute castling rights even if the king is not on the initial square

rbhoopathi04

#4

https://lichess.org/forum/lichess-feedback/castle-bug#1
I found this, too, before, and it can't be chess960 because in my position, the king is on the edge, and in chess960, there must be a rook on both sides of the king, meaning it couldn't have started there. So the king has moved.

https://lichess.org/forum/lichess-feedback/castle-bug#1 I found this, too, before, and it can't be chess960 because in my position, the king is on the edge, and in chess960, there must be a rook on both sides of the king, meaning it couldn't have started there. So the king has moved.

nadjarostowa

#5

The interface allows more castling rights than standard or 960 offer.

I think it wouldn't hurt to add some sanity checks and specifically confirm for 960.

The interface allows more castling rights than standard or 960 offer. I think it wouldn't hurt to add some sanity checks and specifically confirm for 960.