En passant bug in iPad/iPhone app

If one uses the analysis board in online chess, en passant is not allowed as the next move (the first move made on the analysis board).  It is a legal move; the application allows it in the actual game, and the chess.com website analysis board allows it as well.

I know you can't back through moves on the analysis board on the iOS app; I'm guessing the board doesn't have an awareness of the pawn's previous move, so it doesn't recognize a potential en passant situation.

If this is the wrong forum, let me know where I'd have better luck. Thanks!

Jaes

It should allow it. Can you tell me which device you're using and which app version it is please?

Hi Kohai,

This was on an iPhone 4S using whatever iOS and chess.com app version was current when I made the initial post.  I didn't make a note of it at the time.

So that I'm clear, the issue is that on the analysis board, if the opponent's previous move was a 2-square pawn move, I was not allowed to make an en passant capture for the next move. I think this was the actual game that showed the issue:

The capture is legal; it was allowed in the game, and the analysis board on my Mac laptop allowed it just fine.

If I use thed the analysis board to play a sequence of moves in which en passant was allowed, I believe it worked then.  But not as the first move from the current position. My hypothesis was that since you can't walk back through the historical moves on the iOS analysis board (like you can on the one on the site), the app doesn't have contextual awareness that the previous move produced a potential en passant capture situation.

I don't get into such positions very often, so I can't say if I still have the problem.

Thanks for looking into it!

Confirming this on my iPhone 4S as well. I was playing against the computer who made a 2 space pawn move when I had a pawn in position to make an en passant capture. I made the capture, then after he had made his next move, I decided to undo the capture. After undoing the en passant capture, I would not let me remake the same en passant capture. I can assume this is for the same reason, the computer doesn't know what move it just made since I undid the turn and won't allow the capture.

z

Same problem in Android app.

Is this problem ever going to be fixed? I have the same problem in chess mentor on the app. I am unable to complete certain lessons, because the move that brings the lesson forward is en passant, but at the same time, the app doesn't recognize en passant as a legal move!