user can now make a move when viewing an old board position and the game has ended (fixes #246)
user can now make a move when viewing an old board position and the game has ended (fixes #246)

herzbube/littlego,herzbube/littlego,puremourning/littlego,puremourning/littlego,puremourning/littlego,herzbube/littlego,herzbube/littlego,herzbube/littlego,puremourning/littlego