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Couldn't move any pieces

Has this happened to you, in the middle of a game and couldn't move any pieces at all, no piece would move, all I could do is watch the clock run down.
<Comment deleted by user>
If you scroll back moves, or click on prior moves to a former board position, it will look as though it's your move, but it won't let you play. You have to forward the board position to the current move.

Alternatively, you can also just refresh the page any time that you think that you've encountered some sort of a glitch.