Can't move in a game.
I sought of had the same problem.. i could not move my knight.. if i could move it i would win in about 1 or 2 moves.. since i just started playing on this site.. i ended up moving another piece.. lets see what happens.

I can't move in any of the daily puzzles or in tactics trainer on my i-pad. It was working just fine yesterday and on 6/28 daily puzzle last night.

Sometimes the problem is with your own computer. I had a similar problem at one time and I had to erase the hard drive and reinstall windows and all of my programs, then I changed the peripherals such as mouse and keyboard, then everything worked. There may have been a virus or something causing the problem.
In my game vs Wood13, I can't appear to move, even though it is my turn. I tried restarting my browser, even using a different one, and it still won't work. Anyone know what to do here?
link to the game: http://www.chess.com/echess/game.html?id=6339749