I've read all the posts and I just don't see why I (white) can't castle H-side on my next move. I should point out I'm trying to do this in analysis mode, as it's black to move.

• King and Rook not moved. Tick.
• No intervening pieces. Tick.
• No squares involved attacked. Tick.
• No pieces on squares K and R will occupy after. Tick.

I pick up the K and move over the R on G1 and it won't let me drop it there. What is wrong?

If diagram is ok - You should wait for Your opponent to move first.

Even in chess960, one cannot play two moves at once lol.

do you mean the rook on g1 or a1?  because if you mean a1, then the knight is considered an intervening piece.

It's a 960 game and the OP says he's trying to do it on the analysis board, so the comments about it not being his move or that the rook is in the wrong place are misguided.

Looking at the game in question, I see no reason that MickOz shouldn't be able to castle short following a legal move by black.  There is an uncommon bug where castling doesn't always work on the analysis board.  It's been there for a long time, but doesn't seem to happen all that often, so it has gone largely unnoticed by both the populace and the staff except for the rare forum post like this one.

I noticed it does this and with en passant moves on the iphone as well. iPad it works fine.What I would do is try it on another device if you have it (go from phone to PC or the other way) and see if you still have problems.

I think there are some bugs with the analysis board but I've never had a problem in a game.

AdvLegitimate,

It is even possible to castle in 960 with no spaces between the king and rook when both are on the opposite side of the board from where they start.  For example, if the starting position is rook on a1, king on b1, and rook on c1, then when the rest of the rank is clear, you can castle "short" and end up with the king and rook on their normal g1 and f1 squares.

Here's an example where I castled a-side with no squares between my king and rook.

Omnipaul, bobdsw and I were right and everyone else either doesn't understand the 960 rules or just failed to read my post properly!

I was later able to play the move successfully both on the analysis and "real" boards of the Android app version, even though I was unable to play it on the analysis board of website version (running under Chrome on Windows). I can't say whether the problem only applies to the web analysis board though - it might not work on "real" either.

Given that I pay the best part of $100 a year for this site, does anyone know how to formally report a bug?

http://support.chess.com/Tickets/Submit

Thanks Metastable

I've only played one game of 960 on this site but I have read the rules for it & the rules about castling are very clear - you do it in the same way as for conventional chess.
Forget about moving your king two squares to the left or right; instead it's the square that matters, so move the king onto g1 to castle kingside & onto c1 to castle queenside (whatever these terms mean in 960!). The fact that the rook already sits on one of those squares doesn't matter !

The software sorts it all out - I know it works because I've just pasted the PGN of the OP's game above into the game editor, played Kg1 (after moving for black) & the editor castled correctly (even though the rook was on g1).

MickOz, this is why moving the king to h1 didn't work.

Edit:  Can anyone answer this for me - in the only game of 960 I've played, my rook was on a1 & my king on c1. If I had wanted to castle queenside how would I have done it ?

stephen_33,

In all playing areas on this site (live and online standard in addition to online 960), you can perform a castling maneuver (if legal) by moving the king onto the rook.

Thanks for the info' - I didn't know that.  Mind you, I've just tried doing it in the Game Editor & it didn't work (still has to be g1) but next time I get the chance in a game, I'll try it out.

I agree with you that there is a bug.

A point that might clarify the issue:

It's in analysis mode of posted diagrams, but NOT the analysis mode of the "official" diagram at the top of the page.

960

Actually... CHECK THE SUPPORT CENTER

I think you're supposed to drop the king on the rook.