How do you use Sesse? How can I set up a position on Sesse? I've been trying to find a way to set up a position on the blank chessboard for half an hour unsuccessfully. How do you do it?
It doesn't work because there's a bug. If you open the console (F12 → Console) you'll see some errors. It seems that an essential file is missing from the server. Until it is fixed, you should probably use another analysis board.