Yeesterday I played here https://lichess.org/tournament/RFD0ylGd?player=Oden9. On move 14 I wanted as black in round 2. play Rh1xf1, but instead the hole board moved. same thing happened in round 4 and 6 when I wanted to move apiece from h1 or a8.
You're accidentally clicking the board resize handle instead of the rook. To remove this, go to 
https://lichess.org/account/preferences/display
You're accidentally clicking the board resize handle instead of the rook. To remove this, go to 
https://lichess.org/account/preferences/display
