Undo move in computer games?

Hello,

I'm new to Chess.com, and I don't see the option to undo move in computer training games.
How can I do that??

Thanks

Just hit the "back" button (<), and then play what you want.  Enjoy!

Hmmm. When I hit the back button, it goes one move before, but it doesnt not allow me to change my move...

Might have to do with what device you're using.  I just swung over to the "play computer" and had no problem changing a move.  I'm on a PC using a Chrome browser; what are you using?

Oh I hope you're not expecting a fancy interface of some sort.  It's strictly < and then enter your new move.  The old one just kind of vanishes and is replaced.

Oh, I think I see the problem: I was playing vs computer on live and not the regular play. It does not seem to be possible to undo a move on Live. What's the difference between the two though??

Oh no, the computers at Live have been granted full sapient being status.  Yes, they are bots, but the same rules apply as when playing a human.  The advantage over playing a human is that you get to choose what level of play you want, although if you choose too far below your rating you won't get any points for winning.  They also tend to play openings a little closer to opening principles than many like rated humans.

Over at the computer, it's strictly for fun.  You can ask for help, you can take moves back, you can walk away if you're bored.  Games in Live end up in your archives as part of your permanent record.  The games against the computer vanish to be seen no more.  Have fun!

Sorry to ask again, but I'm able to undo moves when playing on computer, but not on the phone app. Is this normal?

Sorry, I don't do the mobile apps...Anyone care to help out?

Apparently it's not possible. How sad and how weird!