Load game does not reset turn, log, and prevMove. No error checking on file I/O. Custom chessboard has unknown issue occasionally causes piece un-movable.
Revert "Load game does not reset turn, log, and prevMove. No error checking on file I/O. Custom chessboard has unknown issue occasionally causes piece un-movable."

This reverts commit 2d837b4881b967da9247c574a651fe8bcf21fa8b.