Nov 10, 2021

-Changed the rules: now the dark player places the first piece and the light one makes the first move. It will most likely stay like this and sorry for causing possible confusions.
-fixed most of the issues caused by the undo button.
-fixed a bug that can make the game unplayable in case that a blue square was not selected during king placement.
-fixed the bug that can lock the formation button upon changing the game format.